2020 Mercedes-Benz GLE 350
Safety record from NHTSA: recalls, owner complaints, investigations and service bulletins.
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Vehicles › Mercedes-Benz › GLE 350 › 2020
These records cover every 2020 Mercedes-Benz GLE 350. To see whether one car still needs a recall repair, decode its VIN or check it with NHTSA.
Recalls
27 recalls name the 2020 Mercedes-Benz GLE 350. Newest first.
Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2020-2021 GLE350, GLE450, GLS450, GLS580, 2021 AMG GLE53, AMG GLE63, Maybach GLS600, AMG GLS63, and 2020 GLE580 vehicles. The air conditioner drain hoses may have been incorrectly installed, causing water to drain into the passenger compartment.
Risk and remedy
Risk
Water intrusion into the foot wells may cause corrosion and/or short circuits to electrical components, increasing the risk of fire. In addition, the emergency call (eCall) feature may be disabled and the doors may not unlock, increasing the risk of injury. Also, the engine may not start or may enter a limp-home mode, increasing the risk of a crash.
Remedy
Dealers will inspect and reinstall the air conditioner drain hoses, as necessary, free of charge. Owner notification letters were mailed April 28, 2023. Owners may contact MBUSA customer service at 1-800-367-6372. This recall is an expansion of recall numbers 21V-288 and 19V-587. MBUSA's numbers for this recall are 2023030014 and 15.
Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2020-2022 GLE350, GLE450, GLS450, 2021-2022 AMG GLE53, 2020-2021 GLE580, GLS580, and 2021 GLE400e, AMG GLS63, AMG GLE63 S, and Maybach GLS600 vehicles. Due to a manufacturing error, the rear door window trim bars may detach.
Risk and remedy
Risk
Detached trim bars may cause a road hazard and increase the risk of a crash or injury.
Remedy
Dealers will inspect and secure the rear window trim bars, as necessary, free of charge. Owner notification letters were mailed November 1, 2022. Owners may contact MBUSA customer service at 1-800-367-6372. MBUSA's number for this recall is 2022090010.
Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2017-2022 CLA-Class, GLA-Class, GLE-Class, GLS-Class, SLC-Class, A-Class, AMG GT-Class, C-Class, E-Class, S-Class, SL-Class, GLC-Class, CLS-Class, GLB-Class, and G-Class vehicles. Please refer to MBUSA's recall report for specific vehicle model details. An error in the communication module's SIM card…
Risk and remedy
Risk
A disabled eCall system would prevent a vehicle occupant from contacting the emergency services call center in an emergency, potentially delaying emergency responders and increasing the risk of injury.
Remedy
The communication module software will be updated through an Over-the-Air (OTA) update or by a dealer, free of charge. Owner notification letters were mailed July 8, 2022. Owner notification letters will be mailed in phases, on July 8, 2022, May 17, 2024, July 29, 2024, and September 27, 2024. Owners may contact MBUSA customer service at 1-800-367-6372. MBUSA's numbers are for this recall is 2022060005 and 2023110006.
Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2018-2021 CLA-Class, GLE/GLS-Class, A-Class, C-Class, E-Class, E-Class Coupe/Convertible, GLA/GLB-Class, GLC-Class, and CLS-Class vehicles. Please refer to MBUSA's recall report for specific vehicle model details. The rearview camera may not display the rearview image due to a software error. As such…
Risk and remedy
Risk
An inoperable rearview camera display reduces the driver's rear view, increasing the risk of a crash.
Remedy
Dealers will update the rearview camera software, free of charge. Owner notification letters were mailed July 15, 2022. Owners may contact MBUSA customer service at 1-800-367-6372. MBUSA's number for this recall is 2022060007.
Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2020 GLE 350 vehicles. The wiring harness connected to the prefuse box in the engine compartment might not be properly secured, which could deactivate fused components, such as power steering assist, headlights, and wipers.
Risk and remedy
Risk
Driving with inoperable power steering assist, headlights, or wipers can increase the risk of a crash.
Remedy
Dealers will replace the prefuse box, free of charge. Owner notification letters were mailed April 8, 2022. Owners may contact MBUSA customer service at 1-800-367-6372.
Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2020 GLS450, GLS580, GLE350, GLE450, AMG C63, and 2021 AMG GLE53 vehicles. The seats may have been assembled incorrectly.
Risk and remedy
Risk
Incorrectly assembled seats may not properly restrain an occupant during a crash, increasing the risk of injury.
Remedy
Dealers will inspect and repair the seats, as necessary, free of charge. Owner notification letters are expected to be mailed December 8, 2021. Owners may contact MBUSA customer service at 1-800-367-6372. MBUSA's number for this recall is 2021110010.
Mercedes-Benz LLC (MBUSA) is recalling certain 2018-2020 C300, 2019-2020 A220, AMG C43, AMG C63, 2020 GLE580, GLB250, 2020-2021 GLE450, GLE350, 2021 AMG GLE63, and AMG GLE53 vehicles. The LED headlights may have been incorrectly adjusted during a vehicle repair. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety…
Risk and remedy
Risk
Incorrectly adjusted headlights may reduce visibility, increasing the risk of a crash.
Remedy
Dealers will replace the LED headlights, free of charge. Interim letters notifying owners of the safety risk were mailed August 13, 2021. A second notice will be sent once the remedy is available. Owner notification letters were mailed January 2022. Owners may contact MBUSA customer service at 1-800-367-6372.
Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2019-2021 CLA-Class, GLE/GLS-Class, A-Class, E-Class, E-Class Coupe and Convertible, GLA/GLB-Class, GLC-Class, CLS-Class, and AMG GT-Class 4-door Coupe vehicles. Please refer to MBUSA's recall report for specific vehicle model details. The MBUX multimedia system software may cause the display to remain…
Risk and remedy
Risk
A backup camera that displays a blank image reduces the driver's rear view, increasing the risk of a crash or injury.
Remedy
The multimedia system software will be updated by a dealer, or through an over-the-air (OTA) update, free of charge. Owner notification letters were mailed beginning June 28, 2021. Owners may contact MBUSA customer service at 1-800-367-6373. MBUSA's number for this recall is 2021050012.
Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2021 AMG GLE 53, 2020 GLE350, GLE450, GLE580, GLS450, and GLS580 vehicles. The air conditioner drain hoses may have been incorrectly installed, causing water to drain into the passenger compartment.
Risk and remedy
Risk
Water intrusion into the driver and passenger side foot wells may cause corrosion and/or short circuits to electrical components, increasing the risk of fire. In addition, the emergency call (eCall) feature may be disabled and the doors may not unlock, increasing the risk of injury. Also, the engine may not start or may enter a limp-home mode, increasing the risk of a crash.
Remedy
Dealers will inspect and correct the air conditioner drain hoses, as necessary, free of charge. Owner notification letters were mailed June 4, 2021. Owners may contact MBUSA customer service at 1-800-367-6372. MBUSA's number for this recall is 2021040024.
Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2020-2021 GLE450, GLE350, and 2020 GLS450, GLE580, GLS580 vehicles. During certain evasive driving maneuvers, the Electronic Stability Program (ESP) software may apply torque to one of the front wheels, pulling the vehicle to one side. As such, these vehicles fail to comply with the requirements of…
Risk and remedy
Risk
If the vehicle unexpectedly pulls to one side during an evasive maneuver, it can increase the risk of a crash.
Remedy
MBUSA will notify owners, and dealers will update the ESP software, free of charge. The recall began March 31, 2021. Owners may contact MBUSA customer service at 1-800-367-6372. MBUSA's number for this recall is 2021030004.
Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2020 GLE350 and GLE450 vehicles. The lighting control unit may malfunction and cause the left exterior reverse light to remain illuminated after the transmission is shifted into a different gear. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number…
Risk and remedy
Risk
If the reverse light remains illuminated in a gear other than reverse, it may cause confusion about the driver's intention to other motorists, and increase the risk of a crash.
Remedy
MBUSA will notify owners, and dealers will replace the lighting control unit, free of charge. Owner notification letters were mailed June 10, 2022. Owners may contact MBUSA customer service at 1-800-367-6372. MBUSA's number for this recall is 2022050004.
Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2020 GLS 450, GLE 350, GLE 450, and 2021 AMG GLE53 vehicles. The dashboard surface may not be properly secured to the base material.
Risk and remedy
Risk
In the event of a crash where the passenger air bag deploys, an unsecured dashboard could impair the inflation of the passenger air bag, increasing the risk of injury.
Remedy
MBUSA will notify owners, and dealers will replace the dashboard, free of charge. The recall began April 16, 2021. Owners may contact MBUSA customer serviced at 1-800-367-6372. MBUSA's number for this recall is 2021030003.
Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2016 - 2021 CLA-Class, GLA-Class, GLE-Class, GLS-Class, SLC-Class, A-Class, GT-Class, C-Class, E-Class, S-Class, CLS-Class, SL-Class, B-Class, GLB-Class, GLC-Class, and G-Class vehicles. Please refer to the Part 573 report for specific vehicle model details. The software design of the communication…
Risk and remedy
Risk
Failure of the eCall system may result in emergency responders being dispatched to the wrong location, increasing the risk of injury following a crash.
Remedy
MBUSA will notify owners, and the communication module software will be updated by a dealer, or through an over-the-air (OTA) update, free of charge. The recall began March 12, 2021. Owners may contact MBUSA customer service at 1-877-762-8267. MBUSA's number for this recall is 2021020025.
Mercedes-Benz AG USA, LLC. (MBUSA) is recalling certain 2021 AMG GLE53, AMG GLE63, 2020 GLE580, 2020-2021 GLE350 and GLE450 vehicles with 5 passenger seating. While buckling the seat belt, the middle seat belt buckle could be pushed down into the gap below the seat cushion. If the buckle can't be retrieved, the buckle latch will be inoperable and unable…
Risk and remedy
Risk
An unrestrained occupant has an increased risk of injury in the event of a crash.
Remedy
MBUSA will notify owners, and dealers will secure the middle seat belt buckle, free of charge. The recall began December 18, 2020. Owners may contact MBUSA customer service at 1-800-367-6372. MBUSA's number for this recall is 2020110005.
Mercedes-Benz USA, LLC. (MBUSA) is recalling certain 2020 GLE 350, GLE 450, GLE 580, GLS 450, GLS 580 vehicles equipped with an optional illuminated Mercedes-Benz star logo in the front grill. The star logo's electrical ground connection may not be installed properly, potentially affecting the function of other components that share the same ground…
Risk and remedy
Risk
If the power steering, wiper motor, or left headlight malfunction there could be an increased risk of a crash.
Remedy
MBUSA will notify owners, and dealers will relocate the ground connection, free of charge. The recall began November 13, 2020. Owners may contact MBUSA customer service at 1-800-367-6372. MBUSA's number for this recall is 2020100015/6.
Mercedes-Benz USA LLC. (MBUSA) is recalling certain 2020 GLE 350 vehicles. The connection of the locking ring between the front and rear part of the drive shaft might not have been installed correctly, possibly resulting in a loss of power transfer between the transfer case and the rear axle differential.
Risk and remedy
Risk
If the transfer case disconnects from the rear axle differential the vehicle could stall, increasing the risk of a crash.
Remedy
The affected vehicles are still in dealer inventory, therefore no owners will be notified. Dealers will replace the drive shaft, free of charge. Both vehicles were repaired in December 2020. Owners may contact MBUSA customer service at 1-800-367-6372. MBUSA's number for this recall is 2020100020.
Mercedes-Benz USA, LLC. (MBUSA) is recalling one 2020 GLE 350 vehicle. One of four bolts securing the driver's seat may not have been installed correctly and may fail.
Risk and remedy
Risk
If a driver's seat fastener bolt fails, the seat may not be properly secured, increasing the risk of injury in a crash.
Remedy
MBUSA will notify the owner, and a dealer will inspect the driver's seat fastening bolts, tightening them as necessary, free of charge. The recall began August 31, 2020. Owners may contact MBUSA customer service at 1-800-367-6372. MBUSA's number for this recall is 2020080010.
Mercedes-Benz USA, LLC. (MBUSA) is recalling certain 2020 GLE 350 and GLE 450 vehicles equipped with an electrically adjustable second-row seat. The wiring harness under the seat may become pinched during seat adjustment, possibly causing damage to the wires.
Risk and remedy
Risk
Damaged wires may cause the rear side air bags to not deploy as intended. Additionally, the driver may not be warned if the second row right seat is not locked into place correctly after using the "Easy Entry" function. Either of these scenarios can increase the risk of injury in the event of a crash.
Remedy
MBUSA will notify owners, and dealers will inspect and reroute the wiring harness as necessary, and repair any wire damage, free of charge. The recall began June 4, 2020. Owners may contact MBUSA customer service at 1-800-367-6372. MBUSA's number for this recall is 2020050009.
Mercedes-Benz USA, LLC. (MBUSA) is recalling certain 2020 GLE350, GLE450 AND GLS450 vehicles. The seams on the rear crossmember may have been insufficiently welded. This may allow cracks to form when towing, possibly causing the rear crossmember to detach from the vehicle.
Risk and remedy
Risk
If the rear crossmember detaches from the vehicle, it can become a road hazard and increase the risk of a crash.
Remedy
MBUSA will notify owners, and dealers will replace the rear crossmember, free of charge. The recall began July 17, 2020. Owners may contact MBUSA customer service at 1-800-367-6372. MBUSA's number for this recall is 2020060013.
Mercedes-Benz USA, LLC. (MBUSA) is recalling certain 2020 CLA250, CLA250 4MATIC and CLA35 AMG 4MATIC, 2020-2021 GLE350, GLE350 4MATIC, GLE450 4MATIC, GLS450 4MATIC and GLS580 4MATIC and 2021 GLE53 AMG Coupe, GLE63S AMG 4MATIC, GLS63 AMG 4MATIC and Maybach GLS600 4MATIC vehicles. The instrument cluster software may deactivate the illumination of certain…
Risk and remedy
Risk
If the interior switches are not illuminated, they may be more difficult to find and operate, increasing the risk of a crash.
Remedy
MBUSA will notify owners, and dealers will update the instrument cluster software, free of charge. The recall began March 31, 2020. Owners may contact MBUSA customer service at 1-800-367-6372. MBUSA's number for this recall is 2020030019.
Mercedes-Benz USA, LLC. (MBUSA) is recalling certain 2020 GLE350, GLE350 4MATIC, GLE450 4MATIC, GLS450 4MATIC, and GLS580 4MATIC vehicles. The rear door window trim may detach.
Risk and remedy
Risk
The detached trim can become a road hazard, increasing the risk of a crash.
Remedy
MBUSA will notify owners, and dealers will inspect and fasten the rear door window trim, as necessary, free of charge. The recall began November 8, 2019. Owners may contact MBUSA customer service at 1-800-367-6372. MBUSA's number for this recall is 2019100011.
Mercedes-Benz USA, LLC. (MBUSA) is recalling certain 2020 GLE 350 4MATIC and GLE 450 4MATIC vehicles. The owner's manuals do not include information regarding the adjustment of the head restraints of the third row seats. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard (FMVSS) number 202a, "Head…
Risk and remedy
Risk
Improperly adjusted head restraints increase the risk of injury to the third row seat passengers in the event of a crash.
Remedy
MBUSA will notify owners, and dealer's will provide a supplementary owner's manual booklet with the necessary information, free of charge. The recall began November 22, 2019. Owners may contact MBUSA customer service at 1-800-367-6372. MBUSA's number for this recall is 2019090005.
Mercedes-Benz USA, LLC. (MBUSA) is recalling certain 2020 GLE350, GLE350 4MATIC, GLS450 4MATIC, and GLE450 4MATIC vehicles. The air conditioner drain hoses may have been incorrectly installed, causing water to drain from the air conditioner into the passenger compartment.
Risk and remedy
Risk
If a significant volume of water enters the driver and passenger side foot wells, it might cause corrosion and/or short circuits to the electrical components in the area, increasing the risk of fire. In addition, the emergency call (eCall) feature may be disabled; the vehicle may not be able to be unlocked and/or started; and the engine limp-home mode might be activated during driving. These features increase the risk of an injury or crash.
Remedy
MBUSA will notify owners, and dealers will inspect and correct the air conditioner drain hoses, as necessary, free of charge. The recall began September 6, 2019. Owners may contact MBUSA customer service at 1-800-367-6372. MBUSA's number for this recall is 2019080005.
Mercedes-Benz USA, LLC. (MBUSA) is recalling certain 2020 GLE350 4MATIC and GLE450 4MATIC vehicles. The connection between the fuel filler pipe and the fuel tank may have been improperly welded, allowing a fuel leak.
Risk and remedy
Risk
A fuel leak in the presence of an ignition source increases the risk of a fire.
Remedy
MBUSA will notify owners, and dealers will replace the fuel tank, free of charge. The recall began October 18, 2019. Owners may contact MBUSA customer service at 1-800-367-6372. MBUSA's number for this recall is 2019090001.
Mercedes-Benz USA, LLC. (MBUSA) is recalling certain 2019 C300 Cabrio, C300A Cabrio 4MATIC, C300 Coupe, C300 Coupe 4MATIC, C300, C300 4MATIC, C43 AMG Cabrio 4MATIC, C43 AMG Coupe 4MATIC, C43 AMG 4MATIC, C63 AMG Cabrio, C63S AMG Cabrio, C63 AMG Coupe, C63S AMG Coupe, C63 AMG, C63S AMG, CLS450, CLS450 4MATIC, CLS53 AMG 4MATIC, E300, E300 4MATIC, E450 Cabrio…
Risk and remedy
Risk
An impaired Active Brake Assist may not automatically apply partial or full braking as expected, increasing the risk of a crash.
Remedy
MBUSA will notify owners, and dealers will update the radar sensor control unit software, free of charge. The recall began September 13, 2019. Owners may contact MBUSA customer service at 1-800-367-6372. MBUSA's number for this recall is 2019080008.
Mercedes-Benz USA, LLC. (MBUSA) is recalling certain 2020 GLE350 4Matic and GLE450 4Matic vehicles. In the event of a crash while the temperature in the passenger cabin is very high, the passenger frontal air bag deployment may be delayed or may not completely deploy.
Risk and remedy
Risk
An air bag that does not deploy as intended can increase the risk of injury in the event of a crash.
Remedy
MBUSA has notified dealers. All affected vehicles are still within the manufacturer's control. Dealers will replace the passenger air bag module, free of charge. The recall began August 14, 2019. Owners may contact MBUSA customer service at 1-800-367-6372. MBUSA's number for this recall is 2019070011.
Mercedes-Benz USA, LLC. (MBUSA) is recalling certain 2020 GLE350 4Matic and GLE450 4Matic vehicles. A welding error during production may have resulted in a small hole in the floor, possibly allowing water to leak into the passenger cabin.
Risk and remedy
Risk
Water in the passenger compartment may affect the vehicle's electrical systems, increasing the risk of a crash or injury.
Remedy
MBUSA will notify owners, and dealers will seal the affected area, free of charge. The recall began July 31, 2019. Owners may contact MBUSA customer service at 1-800-367-6372. MBUSA's number for this recall is 2019060007.
Owner complaints
91 complaints3 involved a crash1 involved a fire2 injuries
What owners report most
Latest complaints
- Other/i am not sure
The rear door window divider bar detached while driving on highway. Unsure if this bar hit another car, we noticed it after the trip ended. The problem has been confirmed by the dealership. There were no warnings or messages about the problem.
- Fuel/propulsion system
Fuel Rail Pressure Sensor failure (P0191) This issue generated a check engine light and limp home mode to be initiated. I have had the part changed and when it was changed the previous part had a manufacturing date of 2025. After replacing with new certified part the issue happened again less than…
Fuel Rail Pressure Sensor failure (P0191) This issue generated a check engine light and limp home mode to be initiated. I have had the part changed and when it was changed the previous part had a manufacturing date of 2025. After replacing with new certified part the issue happened again less than a month later. I have researched and found out that Mercedes has issued a Campaign (L107.70-P-078047) for this issue but they are saying my VIN does not have a recall or campaign attached to it. My vehicle is presenting with the exact issues this campaign states and the same P0191 code that is mentioned in the campaign. It states that there is a software update needed and a flash done on the computer. This issue is causing a safety hazard for driving for when it goes into limp home mode at any speed and any location.
- Engine · Lane departure › Blind spot detection
I keep getting coolant level low. I add coolant fluid into the tank and the warning message comes up again. I see no leaks under my vehicle so not sure if there’s a leak inside the tank itself or air leak somewhere but I’ve gotten that warning message about 10 or more times. Also as im driving the blind spot sensor just randomly goes off without a car or anything being next to me.
- Unknown or other
The a/c unit failed and is available for inspection upon request. Being in an over-heated car can cause dehydration, heat exhaustion and/or heat stroke. I was nauseous and dizzy while driving, putting myself and my passengers at risk. Upon taking my car to a independent service dealer, it was…
The a/c unit failed and is available for inspection upon request. Being in an over-heated car can cause dehydration, heat exhaustion and/or heat stroke. I was nauseous and dizzy while driving, putting myself and my passengers at risk. Upon taking my car to a independent service dealer, it was revealed that their is a leak and the evaporator must be replaced. It has not been inspected by a Mercedes dealer yet. No warning messages.
- Electrical system · Engine
Water pool in passenger side of vehicle all into carpet and glovebox area
- Engine
The engine in my 2020 Mercedes-Benz GLE 350 experienced catastrophic internal failure while driving. No warning lights or check engine indicators came on. Prior to failure, the vehicle began making a loud metallic knocking/rattling sound during acceleration, similar to “rocks shaking in a box.”…
The engine in my 2020 Mercedes-Benz GLE 350 experienced catastrophic internal failure while driving. No warning lights or check engine indicators came on. Prior to failure, the vehicle began making a loud metallic knocking/rattling sound during acceleration, similar to “rocks shaking in a box.” Shortly afterward, the engine suddenly stalled while driving and would no longer run. The vehicle still had electrical power but the engine would not restart. The vehicle was towed to Mercedes-Benz of Las Vegas for inspection. The dealer diagnosed the engine as seized and documented metal debris in the oil filter and oil/metal debris underneath the vehicle, indicating catastrophic internal engine damage. The dealer stated that the engine replacement was required.The failed engine and vehicle are currently located at Mercedes-Benz of Las Vegas and are available for inspection upon request.The vehicle stalled unexpectedly while being driven on a public roadway, causing sudden loss of engine power and creating a potentially dangerous traffic situation. The violent shaking and knocking before failure also caused concern that the vehicle could lose control or stop operating completely in traffic, which it ultimately did. A sudden engine seizure and stall while driving creates a significant safety hazard because the driver may lose the ability to accelerate, maneuver safely, or clear traffic. This could increase the risk of collision, especially at highway speeds or in heavy traffic conditions. Mercedes-Benz of Las Vegas inspected the vehicle and confirmed catastrophic engine failure. The dealer documented that the engine was seized and that metal debris was found in the oil filter and underneath the vehicle. The dealer advised that the engine required replacement and provided an estimated repair cost exceeding $27,000. The dealer has not yet identified the root cause of the failure. No dashboard warning lights, oil pressure warnings, or check engine lights illuminated.
- Electrical system
To Whom It May Concern: I am submitting this complaint regarding my 2020 Mercedes-Benz GLE 350 and respectfully requesting review of a serious infotainment and electronic system failure that occurred at approximately 49,000 miles. Prior to the failure of the MBUX infotainment system, the vehicle…
To Whom It May Concern: I am submitting this complaint regarding my 2020 Mercedes-Benz GLE 350 and respectfully requesting review of a serious infotainment and electronic system failure that occurred at approximately 49,000 miles. Prior to the failure of the MBUX infotainment system, the vehicle began exhibiting abnormal electrical behavior. On multiple occasions, the right headlight remained illuminated even after the vehicle had been completely turned off and locked. The only temporary way to resolve this was to restart the vehicle and shut it down again. Shortly afterward, the vehicle displayed warnings indicating that the 12V battery was very low and required charging. Soon after these electrical issues appeared, the MBUX infotainment system became stuck on the Mercedes-Benz startup logo screen and has remained nonfunctional since. Although the backup camera still partially functions, the infotainment system itself will not boot properly or operate normally. The authorized Mercedes-Benz dealership documented the following diagnostic fault codes: • B14D913 – Internal hard disk malfunction/open circuit • B14F900 – Internal hard disk full According to the dealership service report, guided tests, MOST ring reset procedures, and hard resets of the control unit were all performed without resolving the issue. The dealership ultimately recommended complete replacement of the MBUX head unit at a very significant cost. This situation is especially concerning because the vehicle has relatively low mileage, has been properly maintained, and recently underwent Service B and 12V battery replacement through an authorized Mercedes-Benz dealership immediately after the battery warning appeared. A major infotainment head unit/internal storage failure at this mileage is not something we reasonably expected from a luxury vehicle. While researching this issue further, I discovered numerous online reports from other Mercedes-Benz owners — particularly owners of 2020–2023 GLE models —
- Electrical system · Engine · Fuel/propulsion system
We were traveling to our son’s college graduation, driving on a rural interstate and suddenly all of the vehicle’s warning lights lit on the dash and the car started losing, and then completely lost power. The car was no longer operational. We were stranded on the roadside of a remote but busy…
We were traveling to our son’s college graduation, driving on a rural interstate and suddenly all of the vehicle’s warning lights lit on the dash and the car started losing, and then completely lost power. The car was no longer operational. We were stranded on the roadside of a remote but busy 2-lane interstate for 2 hours until a tow truck could arrive and take the car to the closest car repair shop which was 45 minutes away. This was an incredibly dangerous situation and we were fortunate to be alongside the shoulder, although we were still close to the tractor trailers and cars on the interstate. (Because we were stranded in such a remote place, we had no other options to get to our son’s graduation. We were unable to attend because of this.) The rural repair shop the car was initially towed to could not determine the problem. A few days later we found a 2nd tow truck that agreed to bring the vehicle several hundreds of miles back to our home city. This car is a 2020 model, and has around 55,000 miles. It has been meticulously maintained by a certified Mercedes mechanic. There were no issues with the car and no indication that there might be a problem. Our mechanic has thoroughly inspected the vehicle and said that the engine has completely seized and the only option is to replace it. We have no idea why this happened. If requested, the vehicle is available for inspection.
- Electrical system · Unknown or other
I am submitting a safety complaint regarding my 2020 Mercedes-Benz GLE 350 due to what appears to be a significant air conditioning refrigerant leak. The vehicle rapidly loses refrigerant shortly after being recharged. When the system is operating, a loud seeping/hissing sound can be heard from the…
I am submitting a safety complaint regarding my 2020 Mercedes-Benz GLE 350 due to what appears to be a significant air conditioning refrigerant leak. The vehicle rapidly loses refrigerant shortly after being recharged. When the system is operating, a loud seeping/hissing sound can be heard from the HVAC system area, followed by complete loss of cold air within a very short period of time. This issue appears to indicate a major refrigerant system failure and raises concerns about potential defects in the evaporator, condenser, hoses, or related AC components. The leak rate is excessive and ongoing. I am concerned this may be a broader manufacturing defect impacting other Mercedes GLE vehicles. The vehicle has been properly maintained, and the failure occurred under normal operating conditions. Given the frequency of similar complaints online involving Mercedes HVAC refrigerant leaks and evaporator failures, I believe this issue warrants investigation for a potential recall or manufacturer accountability. The failure impacts driver and passenger comfort and visibility in humid or high-temperature conditions due to inability to properly defog windows. I respectfully request that NHTSA investigate this issue for potential safety and defect trends affecting the 2020 Mercedes-Benz GLE platform.
- Power train
Transmission keeps going into neutral when you put into drive or reverse
- Unknown or other
The glass between windshield and panoramic sunroof has 2 cracks starting on the drivers side and continuing all the way across to the passenger side. we dont recall an objects hitting the glass.
- Visibility › Sun/moon roof assembly
The contact owns a 2020 Mercedes-Benz GLE350. The contact stated that while driving at an undisclosed speed, there was an abnormal sound coming from the sunroof. The sunroof cover was not opened. The contact pulled over to the side of the road and exited the vehicle. Upon inspection, the contact…
The contact owns a 2020 Mercedes-Benz GLE350. The contact stated that while driving at an undisclosed speed, there was an abnormal sound coming from the sunroof. The sunroof cover was not opened. The contact pulled over to the side of the road and exited the vehicle. Upon inspection, the contact became aware that the sunroof glass had shattered. The vehicle was taken to the dealer, but was not repaired due to the cost. The vehicle remained at the dealer unrepaired. The manufacturer was notified of the failure but denied assistance in covering the cost of the repair. The failure mileage was approximately 90,000.
- Engine
Cooling system failure due to cracked coolant line beneath intake manifold at 57,000 miles. Part # 264-200-42-01. Sudden coolant loss can cause engine overheating and potential engine stall while driving, posing safety risks. The original part was plastic and has been superseded by manufacturer to…
Cooling system failure due to cracked coolant line beneath intake manifold at 57,000 miles. Part # 264-200-42-01. Sudden coolant loss can cause engine overheating and potential engine stall while driving, posing safety risks. The original part was plastic and has been superseded by manufacturer to metal, suggesting design inadequacy. This was confirmed by Mercedes Benz dealership and also by MB USA. There have been multiple reports by other owners online, indicating this has been a common problem on a 2020 GLE 350. There was also an article in Jan 2022 stating that Mercedes had sent a letter to 800,000 owners informing them of a defect, but no there was no recall due to part shortage. https://www.insurancejournal.com/news/international/2022/01/05/648140.htm Yes, dealership has diagnosed it and confirmed this is the problem. There was a warning lamp/message stating low coolant level, which prompted me to take the vehicle to the dealership. Car has been serviced regularly at the Mercedes dealership. Strong risk of overheating.
- Electrical system · Fuel/propulsion system · Power train
After starting my vehicle and placing it into drive, a warning message appeared on the dashboard stating, “Vehicle warning Do not continue to drive,” indicating that the vehicle would be unable to move forward or in reverse. Immediately following the warning, the vehicle lost all ability to move…
After starting my vehicle and placing it into drive, a warning message appeared on the dashboard stating, “Vehicle warning Do not continue to drive,” indicating that the vehicle would be unable to move forward or in reverse. Immediately following the warning, the vehicle lost all ability to move in either direction while other vehicles were approaching, creating a hazardous situation placing my safety at risk. I was required to keep my foot on the brake and ultimately place the vehicle in the park position. The vehicle was subsequently towed to the dealership. Following diagnostic testing, the dealership confirmed a transmission solenoid valve fault in the control unit and recommended replacement of the transmission valve body and park pawl solenoid, along with a transmission service. The condition was confirmed by the dealership, and there were no warning messages, indicator lights, or symptoms prior to the sudden failure.
- Electrical system · Lane departure › Assist · Lane departure › Warning
My 2020 GLE 350 first displayed a problem with left indicator on front left hand head lamp. I took an appointment with my Mercedes dealer for repair. Then it started showing all kinds of safety problems on the screen -like blind spot monitoring, collision warning etc not working. I parked it in my…
My 2020 GLE 350 first displayed a problem with left indicator on front left hand head lamp. I took an appointment with my Mercedes dealer for repair. Then it started showing all kinds of safety problems on the screen -like blind spot monitoring, collision warning etc not working. I parked it in my garage, shut off the engine, locked it and in a couple minutes, it started a blower like sound. I called Mercedes service center and described the problem. They sent a tow truck. While waiting for tow truck, the blower would automatically start every 3 to 4 minutes in a standing, switched off car which can be very dangerous. After diagnostics the authorized service center found the root cause to be a worn out seal which let condensation in the lamp assembly and the water entered in the electrical module. I have taken up the issue with Mercedes corporate. While they are investigating, I wanted to file this complaint so that if there are similar complaints in this model, it may be a manufacturing defect that needs a recall to fix the bad sealing
- Engine and engine cooling
The contact owns a 2020 Mercedes-Benz GLE350. The contact stated that while driving at various speeds, the vehicle failed to accelerate as intended while the accelerator pedal was depressed. The check engine warning light was illuminated. In addition, the contact stated that while the vehicle was…
The contact owns a 2020 Mercedes-Benz GLE350. The contact stated that while driving at various speeds, the vehicle failed to accelerate as intended while the accelerator pedal was depressed. The check engine warning light was illuminated. In addition, the contact stated that while the vehicle was stopped, the vehicle was idling low. The vehicle was taken to a local dealer, where it was diagnosed with a misfire in cylinder #4. The vehicle was not repaired. Upon further investigation, the contact related the failure to a NHTSA recall; however, the VIN was not included. The manufacturer was made aware of the failure. The failure mileage was approximately 100,000.
- Engine
Cylinder head is defective and needs replacing. It is at the dealer for service at the tune of $7700. The car will not accelerate and sounds like it is in the wrong gear. Upon searching the Internet it seems like there are tons as in 1000’s of 2020, 2021 and 2023 Mercedes GLE 350s all having the…
Cylinder head is defective and needs replacing. It is at the dealer for service at the tune of $7700. The car will not accelerate and sounds like it is in the wrong gear. Upon searching the Internet it seems like there are tons as in 1000’s of 2020, 2021 and 2023 Mercedes GLE 350s all having the same problem. There should be a recall as most cars are seeing this problem at 20,000 to 30,000 miles and at times when it is replaced, it turns around and happens again. Starting misfiring in October and continued to get worse.
- Back over prevention › Sensing system › Camera
The main multimedia screen in the car has failed and is malfunctioning. Rear view parking camera only works some of the time. No access to temperature control. No access to navigation. No access to multimedia. The lack of functioning camera system has put myself and others at risk during parking…
The main multimedia screen in the car has failed and is malfunctioning. Rear view parking camera only works some of the time. No access to temperature control. No access to navigation. No access to multimedia. The lack of functioning camera system has put myself and others at risk during parking and driving. This has been reported as a recall in the past (NHTSA 21V354, MBUSA Campaign 2021080009) and has been reportedly completed. My concern is that this repair/fix dis not sufficiently address the root of this issue and now the problem has returned.
- Engine
Engine Cylinder Head Failure on CPO Mercedes-Benz GLE 350 Vehicle Information: •Make: Mercedes-Benz •Model: GLE 350 •Year: 2020 •Mileage at time of issue: 90,000 Summary of Complaint: The vehicle experienced a premature cylinder head failure, resulting in significant engine damage and repair…
Engine Cylinder Head Failure on CPO Mercedes-Benz GLE 350 Vehicle Information: •Make: Mercedes-Benz •Model: GLE 350 •Year: 2020 •Mileage at time of issue: 90,000 Summary of Complaint: The vehicle experienced a premature cylinder head failure, resulting in significant engine damage and repair costs. There were no prior warning lights or diagnostic codes indicating a problem before the failure occurred. The malfunction caused sudden performance issues, including rough idling, misfiring, and loss of power. Details of the Incident: While operating the vehicle under normal driving conditions, the engine began to run roughly and lost power unexpectedly. Diagnostic testing revealed that the cylinder head had failed, which appears to be a mechanical or manufacturing defect rather than wear and tear. The repair estimate from the dealership was approximately $8,900, which is disproportionately high for a vehicle of this age and mileage. Safety Concerns: This type of failure could lead to sudden engine shutdown or loss of power while driving, posing a safety risk to occupants and other drivers on the road. Manufacturer Case Reference: This issue has also been reported to Mercedes-Benz under case number 18281587. Additional Information: After research, it appears that other Mercedes-Benz GLE owners have reported similar issues related to engine component failures, suggesting this may be a broader quality or manufacturing issue that warrants investigation. Requested Action: Requesting that NHTSA investigate potential defects in the engine or cylinder head assembly for the 2020 Mercedes-Benz GLE 350 and determine whether a recall or service bulletin is appropriate.
- Electrical system · Lane departure › Blind spot detection
Wire harness need to be replaces car is under 100k miles and the same issue has been recalled cla250 gla models with the same engine. Current model GLE is not under recall but has the same issue with the electrical issue “oil pump vavle connector fault” which cause engine light .
- Engine
I am writing to express serious concern regarding a potentially dangerous mechanical issue with my Mercedes GLE 350. The vehicle has experienced a complete cylinder head failure, requiring an estimated $7,000 repair. Both an independent service center and an authorized Mercedes service center have…
I am writing to express serious concern regarding a potentially dangerous mechanical issue with my Mercedes GLE 350. The vehicle has experienced a complete cylinder head failure, requiring an estimated $7,000 repair. Both an independent service center and an authorized Mercedes service center have confirmed this diagnosis. During the inspection process, Mercedes conducted two diagnostic tests—one costing $250 and a second costing $700—before determining that the cylinder head must be replaced. I was informed by the Mercedes service advisor that the company is aware this issue has affected other GLE 350 vehicles; however, no recall has been issued to date. This failure presents a significant safety risk. The vehicle suddenly loses power without warning, and acceleration becomes severely limited, often not exceeding 20–40 mph even when pressing the accelerator fully. The check engine light illuminates at the time of power loss, leaving the driver unable to maintain safe highway speeds or merge with traffic—posing a serious hazard to both the driver and others on the road. Given that this appears to be a known issue, I am requesting immediate review and investigation by Mercedes-Benz. A recall or formal service campaign should be considered to address this potentially dangerous defect and to ensure the safety of all affected drivers. Thank you for your prompt attention to this matter.
- Fuel system, gasoline
The contact owns a 2020 Mercedes-Benz GLE350. The contact stated that while driving at an undisclosed speed, the check engine warning light illuminated. The vehicle was taken to the dealer, who diagnosed a failure with the fuel pump. The vehicle was repaired. After investigating the failure, the…
The contact owns a 2020 Mercedes-Benz GLE350. The contact stated that while driving at an undisclosed speed, the check engine warning light illuminated. The vehicle was taken to the dealer, who diagnosed a failure with the fuel pump. The vehicle was repaired. After investigating the failure, the contact related the failure to NHTSA Campaign Number: 23V445000 (Fuel System, Gasoline), but the VIN was not included. The manufacturer was notified of the failure, and a case was opened. The failure mileage was 79,000.
- Air bags
Air bag warning light
- Engine
My 2020 Mercedes-Benz GLE 350 experienced a complete engine seizure at approximately 60,000 miles without any warning signs. The vehicle shut down and would not restart. The engine is completely inoperable. I am aware of recalls involving engine stalling and fuel system issues in this model, and I believe this may be related to a broader defect. Mercedes-Benz has not offered support as of this writing.
- Electrical system
The contact owns a 2020 Mercedes-Benz GLE350. The contact stated that the vehicle started to display failures with the air conditioning system blowing hot air. The vehicle was taken for inspection at a local dealer, and the contact was informed that the vehicle was experiencing electrical failures…
The contact owns a 2020 Mercedes-Benz GLE350. The contact stated that the vehicle started to display failures with the air conditioning system blowing hot air. The vehicle was taken for inspection at a local dealer, and the contact was informed that the vehicle was experiencing electrical failures due to water entering the footwells, with the check engine warning light remaining illuminated. The vehicle was diagnosed, and the contact was informed that the air conditioning was faulty and needed to be replaced. The vehicle was not repaired. The manufacturer was notified of the failure. The approximate failure mileage was 44,000.
Service bulletins
Technical service bulletins and other communications the manufacturer sent dealers about this vehicle. Ask a dealer for the full document by its number.
- 11010818Complaint Transmission control unit Y3/8n4 (fully integrated transmission control unit (VGS)) not listed in quick test and/or no communication possible with VGS. Cause Transmission control unit Y3/8n4 Remedy It is important that LI54.15-P-057373 is processed before replacing any component parts (transmission 722.9). After processing and complying with the above documents, perform a reset on the transmission control unit Y3/8n4 (VGS) (ignition reset), check that the transmission connector is seated correctly and inspect the PINs for concerns. If communication with the VGS cannot be established afterwards, the component part 'electrohydraulic controller unit (EHS)' must be replaced, as it is not possible to transfer the valve characteristics under the above-mentioned conditions. Installation of a VGS repair kit is not permitted in this case.
- 11010755Complaint After a control unit replacement of "N112/9 - control unit for telematics services (HERMES)" or the "N112/2 - control unit for telematics services (RAMSES)", the Digital Extras (previously Mercedes me) cannot be activated. The DTC B15CE00 is active or active+saved. In vehicles with "N112/9 - control unit for telematics services (HERMES)": The message "SOS - service not activated" permanently lights up in the instrument cluster AND the actual value "Error when replacing certificate (CEP.36)" is displayed in the actual values for the activation status under "Registration status" (see picture 1). In the control unit log of the "N112/9 - control unit for telematics services (HERMES)", the registration error "CEP Invalid VIN/UniqueID combination" is displayed. In vehicles with "N112/2 - control unit for telematics services (RAMSES)": The actual value "Error when replacing certificate (CEP.36)" is displayed in the actual values for the activation status under "Registration status" (see picture 1). In the control unit log of the "N112/2 - control unit for telematics services (RAMSES)", the registration error "CEP_ VIN_UNIQUEID_INVALID" is displayed. The emergency call is not impaired. Cause In the event of a control unit replacement, sporadic problems in the back end could result in data from the new control unit not being updated in the back end system. Remedy Please create a TIPS case. In some cases, the problem rectifies itself on its own after a little while.
- 11010494Complaint Rear lamps fogged up/not leaktight. Cause Fogging of the rear lamps is a natural phenomenon, which can occur under certain climatic conditions. This does not lead to any technical impairment of the rear lamps. Remedy Rear lamp: Remedy 1: Clearing fogged/condensed rear lamps: 1. Drive the vehicle into the workshop (temperature higher than +18 C/+64.4 F) Note: Do not wash the vehicle or subject it to high-pressure cleaning before the defogging test. 2. Switch off the engine and connect battery support via a charger. 3. Open the trunk. 4. Switch on the exterior lighting. 5. Leave the vehicle in this state for 60 minutes. 6. Check for formation of condensation -> a significant reduction in the formation of condensation must be clearly recognizable (defogging progress). Note: -If no reduction in the degree of fogging is visible, the rear lamp is defective and must be replaced. -It is not physically possible to defog the headlamps completely some residual fogging may remain. Fogging does not impair the functionality or the service life of the rear lamps. -Simultaneous fogging of multiple component parts indicates extreme climatic conditions and also does not impair the functionality or the service life of the rear lamps. Remedy 2: You can recognize a defective rear lamp as follows: 1. Check the rear lamps to ensure that no external damage is present, and that the differential aeration cells and the diaphragm are present and correctly seated. -> If there are signs of external damage on the rear lamp, the component parts must be replaced as per WIS instructions. 2. Check the electrical connectors of the plugs and pins. -> If moisture/corrosion/etc. is present, the component part must be replaced as per WIS instructions. 3. Check for leak tightness -> Close all openings with Terostat IX or similar and establish and stabilize via an overpressure (4050 mbar) via the plug. -> In the event of a sudden pressure drop, the component part must be replaced as per WIS instructions. Note: External damage to the rear lamps does not constitute a warranty or goodwill case.
- 11010455Complaint Only vehicles with a variable transfer case are affected. Can be identified through control unit N45 or N15/7 in the quick test When accelerating with light load, vibrations or jolting sensation may come from the drivetrain Cause Modified oil quality of the transfer case over time Remedy Check initial quick test for faults in the following control units N45 - All-wheel drive (ARS) N127 - 'Drivetrain' (PTCU) control unit Y3/8 - Transmission control for 9-gear transmission (VGS) N3/10 - Engine electronics for combustion engine If faults are present, process them as per the guided test in Xentry If no faults are present: Check the oil level of the transmission If the oil level is correct: Unplug the connector for the transfer cases control unit Reassess the vehicle on a subsequent test drive If the complaint no longer occurs: Perform an oil change of the transfer case according to WIS specifications After please complete all transfer case Tech-in processes located under VG control unit Adaptations tab - Resetting the oil service data - Calibration of N15/7 Perform road test of vehicle to bring transmission to operating temperature ( >60C ) Operate vehicle in full circle with steering at full lock - 5x to the left - 5x to the right Reassess the vehicle following the oil change and teach in If the problem continues to occur with the plug removed or after the oil change has been carried out: Create a TIPS case with the following data Initial quick test with fault freeze frame data EEPROM data from Y3/8 Transmission control unit EEPROM data from N45 All-wheel drive Injector performance data
- 11010450Complaint When using the offroad display in the MBUX, the "Transparent hood" function cannot be activated using the camera symbol. Cause MBUX FUP5 software: E504.3 (A 297 904 97 00) E504.4 (A 297 904 03 01) Remedy Update of head unit A26/17 to the new software: E504.5 (A 297 904 09 01)
- 11010438Complaint Customer complains about anti-theft alarm system triggering without obvious cause when the vehicle is parked and/or when entering the vehicle. All MFA2 and 167 derivates with code 882 may be affected. Cause This is caused by a sporadic loss of communication to the anti-theft alarm system [N26/6]. In many instances there are one or more FCs U110D87, U001988, U016787 stored in the control units anti-theft alarm system [N26/6] and/or signal acquisition and actuation module [N10] / [N10/6]. The alarm system memory may contain several alarm sources. Remedy Please process all following points in succession: 1. Check - Power supply of the overhead control panel [N70] - Ground points of the overhead control panel [N70] Model series 118, 177, 247: W78 Model series 167: W15/2 Model series 243: W78/2 - LIN lines between overhead control panel [N70] and alarm siren [H3/1] - CAN lines between overhead control panel [N70] and signal acquisition and actuation module [N10] or [N10/6] 2. Open TIPS case for vehicles from production date 01.06.2023 (Send to Body/Chassis/Entertainment Inbox) - Attach photo of overhead control panel label (see example images) - Add control unit log of anti-theft alarm system [N26/6] - Add alarm history of anti-theft alarm system [N26/6], alarm siren [H3/1] and front signal acquisition and actuation module [N10/6] 3. Remedy for vehicles prior to production date 01.06.2023 - If the problem cannot be reproduced, the overhead control panel [N70] (anti-theft alarm system [N26/6] is integrated) must be replaced.
- 11010437Complaint Automatic window raising function of side window inoperative. Cause Denormalization of the window lifter system. Remedy Update the software in the affected door control unit (N69/x). This requires the door control unit (N69/x) to be commissioned. (Path: XENTRY -> Control units view -> DCU-XX (N69/x) -> Adaptations -> Commissioning) SW item numbers of the repair software: A1679023716 for the door control units on the front doors (N69/1 and N69/2) A1679023816 for the door control units on the rear doors (N69/3 and N69/4)
- 11010435Complaint -Check engine light(MIL) is ON. -Current and stored fault code in DCCU and PTCU : P2E9873 The position sensor of the exterior socket flap of the vehicle socket (direct current) has an electrical fault. The actuator does not open. -Starting the vehicle or Charging the vehicle is normal without any issues. Cause Software in the "N116/5 - Direct current charge connection unit (DCCU)" control unit. Remedy SW remedy for N116/5(DC-Charging control unit box) is in progress. Once the software is available, update the software for N116/5 and perform SCN coding of N116/5 For this issue, the vehicle starting or charging functions are not typically affected. Do not replace any parts. Replacing parts will not bring a solution for this issue.
- 11009550Complaint Customer concern of Air Conditioning not cooling. Cause Possible refrigerant leak at the evaporator. Remedy Perform the following measures : Remedy 1 (Only applies to vehicles produced during or prior to June 2023) 1. Picture of the forming gas check being performed with RO that shows the VIN clearly in view. 2. Clear picture of VIN on B-pillar. 3. Ensure that the rest of the AC system has been thoroughly checked for leaks before condemning the evaporator. Remedy 2 (Applies to all 167's produced after June 2023) 1. Do NOT remove the expansion valve from the evaporator prior to being advised to in a TIPS case. 2. Initial Quick Test 3. Create a short video of the actual pressures via AC machine, showing the engine running, and hold a copy of the VIN/RO in view as well. 4. Picture of the forming gas check being performed with RO that shows the VIN clearly in view. 5. OBS recording of XENTRY AC actual values of compressor request to be on and current value. (Instructions in Attachments) 6. Video recording of the leak being found via sniffer at the R/F AC drain after removing the under dash panel. (see attached videos) 7. If the evaporator is found to be leaking via sniffer, another video needs to be uploaded (or a continuation if only making the video after checks), showing the expansion valve being checked for leaks. 8. If no leaks are found with the sniffer at the expansion valve, spray soapy water mix on the expansion valve and check for leaks. Upload a video showing the spray test and VIN. 9. Open a TIPS case in the HV/LV inbox labeled "167 Evaporator Suspected of Leaking" with all attachments.
- 11009549Complaint Customer complains about anti-theft alarm system triggering without obvious cause when the vehicle is parked and/or when entering the vehicle. All MFA2 and 167 derivates with code 882 may be affected. Cause This is caused by a sporadic loss of communication to the anti-theft alarm system [N26/6]. In many instances there are one or more FCs U110D87, U001988, U016787 stored in the control units anti-theft alarm system [N26/6] and/or signal acquisition and actuation module [N10] / [N10/6]. The alarm system memory may contain several alarm sources. Remedy Please process all following points in succession: 1. Check - Power supply of the overhead control panel [N70] - Ground points of the overhead control panel [N70] Model series 118, 177, 247: W78 Model series 167: W15/2 Model series 243: W78/2 - LIN lines between overhead control panel [N70] and alarm siren [H3/1] - CAN lines between overhead control panel [N70] and signal acquisition and actuation module [N10] or [N10/6] 2. Open TIPS case for vehicles from production date 6/1/2023 - Attach photo of overhead control panel label (see example images) - Add control unit log of anti-theft alarm system [N26/6] - Add alarm history of anti-theft alarm system [N26/6], alarm siren [H3/1] and front signal acquisition and actuation module [N10/6] 3. Remedy for vehicles prior to production date 6/1/2023 - If the problem cannot be reproduced, the overhead control panel [N70] (anti-theft alarm system [N26/6] is integrated) must be replaced.
- 11009122Complaint Washer fluid system leaks Cause Various possible causes: 1. Washer fluid reservoir itself. 2. Seal on washer fluid pump/washer fluid reservoir. 3. Washer fluid pump. 3.1. Distributor housing leaks. 3.2. Pump fitting leaks. 3.3. Washer fluid hose cannot be snapped into place on pump fitting. 3.4. Washer fluid hose will not stay on pump fitting, although connector OK. 4. Washer fluid line. 4.1 Connector will not stay on pump fitting because it is broken. 4.2 Sealing ring in connector missing. 4.3 Sealing ring in connector fitted, but deformed and therefore leaks. 4.4 Damage to washer line by animal. 5. Seal on heating washer fluid reservoir/washer fluid reservoir. Remedy Replace defective component parts only. Do not replace any adjacent component parts that are intact. Note: Repair kits for washer line hoses do exist to allow patches for line damage.
- 11009036Complaint "Active Emergency Stop Assist Currently Unavailable" and "Active Steering Assist Inoperative" instrument cluster messages along with Tire Pressure Light on in Instrument Cluster. Cause Both systems are temporarily unavailable due to low tire pressures. An active tire pressure monitor light may result in some assistance features being temporarily unavailable until tire pressures are corrected. Remedy Check/adjust tire pressures and reset monitoring through the instrument cluster.
- 11008882Complaint Customer concern of Air Conditioning not cooling. Cause Possible refrigerant leak at the evaporator. Remedy Perform the following measures : Remedy 1 (Only applies to vehicles produced during or prior to June 2023) 1. Picture of the forming gas check being performed with RO that shows the VIN clearly in view. 2. Clear picture of VIN on B-pillar. 3. Ensure that the rest of the AC system has been thoroughly checked for leaks before condemning the evaporator. Remedy 2 (Applies to all 167's produced after June 2023) 1. Initial Quick Test 2. Create a short video of the actual pressures via AC machine, showing the engine running, and hold a copy of the VIN/RO in view as well. 3. Picture of the forming gas check being performed with RO that shows the VIN clearly in view. 4. OBS recording of XENTRY AC actual values of compressor request to be on and current value. (Instructions in Attachments) 5. Video recording of the leak being found via sniffer at the R/F AC drain after removing the under dash panel. (see attached videos) 6. If the evaporator is found to be leaking via sniffer, another video needs to be uploaded (or a continuation if only making the video after checks), showing the expansion valve being checked for leaks. 7. If no leaks are found with the sniffer at the expansion valve, spray soapy water mix on the expansion valve and check for leaks. Upload a video showing the spray test and VIN. 8. Open a TIPS case in the HV/LV inbox labeled "167 Evaporator Suspected of Leaking" with all attachments. Please see the list of WIS documents for forming gas leak check and recharging of the system. All documents, with the exception of videos need to be uploaded for the warranty claim. Videos are only needed if a TIPS case is opened. Ensure that a full vacuum is pulled on the system for at least 30 minutes after replacement Condenser replacement is NOT authorized as a suitable repair in lieu of the dryer not being available.
- 11008880Complaint After a control unit replacement of "N112/9 - control unit for telematics services (HERMES)" or the "N112/2 - control unit for telematics services (RAMSES)", the Digital Extras (previously Mercedes me) cannot be activated. The DTC B15CE00 is active or active+saved. In vehicles with "N112/9 - control unit for telematics services (HERMES)": The message "SOS - service not activated" permanently lights up in the instrument cluster AND the actual value "Error when replacing certificate (CEP.36)" is displayed in the actual values for the activation status under "Registration status" (see picture 1). In the control unit log of the "N112/9 - control unit for telematics services (HERMES)", the registration error "CEP Invalid VIN/UniqueID combination" is displayed. In vehicles with "N112/2 - control unit for telematics services (RAMSES)": The actual value "Error when replacing certificate (CEP.36)" is displayed in the actual values for the activation status under "Registration status" (see picture 1). In the control unit log of the "N112/2 - control unit for telematics services (RAMSES)", the registration error "CEP_ VIN_UNIQUEID_INVALID" is displayed. The emergency call is not impaired. Cause In the event of a control unit replacement, sporadic problems in the back end could result in data from the new control unit not being updated in the back end system. Remedy Please create a TIPS case. In some cases, the problem rectifies itself on its own after a little while.
- 11008712Complaint Check engine light on. One of the below fault codes is current in the engine control module (N3/10). P04DB29, P04DB31, P04DB79 Cause Open circuit or high resistance to crankcase vent line contact Remedy 1. Check the electrical connector for the relevant vent line contact switch noted below. Refer to attached photos of connection locations. 2. Ensure the bolted connection is secure and bolt can be torqued (9Nm). 3. Check continuity from vent line connection to ME control unit. Repair wire if damage is found. The circuit from ME provides 5V and is pulled to 0V when the ground connection is intact. M260 P04DB31- S88/15 P04DB79- S88/16 M264 P04DB31- S88/15 P04DB79- S88/16 P04DB29- S88/17 M270/M274 P04DB79- S88/5 Note: This repair is not warrantable if the connection was left loose during previous repair/maintenance.
- 11008093Complaint After clicking on the "Radio" selection function, the radio does not start and instead a permanent loading wheel is displayed. See attached picture for example. Cause Software version Remedy A26/17 - MBUX multimedia system (Head unit) unit must be replaced. When the head unit is in this condition, a software update will not remedy the situation. NOTE: The information contained in this document is intended for use by trained, professional technicians with the knowledge to properly and safely perform diagnosis and repairs on Mercedes-Benz vehicles, using Mercedes-Benz approved tools and equipment. It informs service technicians about conditions that could occur in certain vehicles and provides information that could assist in proper vehicle diagnosis, service, or repair. It does not indicate that a defect is present in any vehicle referenced in this document nor does it imply warranty coverage. DO NOT assume that a symptom or condition, or a described cause of a symptom or condition, affects any particular vehicle or groups of vehicles, or that a described repair applies to any particular vehicle or groups of vehicles. There can be multiple causes resulting in the same or similar symptoms or conditions described in this document, and trained professional service technicians must use their diagnostic skills to make evaluations on a case-by-case basis. The information contained in this document does not guarantee warranty coverage nor does it extend the vehicles warranty in any way.
- 11008091Complaint During a phone call, the called party has difficulty understanding/cannot understand the driver, or interference/background noises are audible to the called party during a call. It becomes increasingly difficult to understand as the speed rises. Cause A. Seating of the microphones in the headliner. Side edges are covered by the textile cover (see picture "1") B. Assembly of microphones (B25/20 or B25/21) in the headliner. C. Dirt inside the microphone housing Remedy 1. Press finger on rear of microphone (on adhesive tape) 2. Remove microphone cap from the front 3. Eliminate protruding material residues of the microphone cutout at the headliner, e.g. with a soldering iron. The microphone must be seated in the headliner as shown in picture "2". 4. Push microphone from behind until it is firmly pressed into the headliner 5. Maintain pressure and press/clip cap into microphone from the front. Note: The cover cap must be clearly heard and felt to engage. 6. This procedure must be carried out on both microphones (B25/20 and B25/21) Note: It is recommended to replace the cover caps. The non-woven cloth in the cover cap protects the microphone from soiling and must not be removed. NOTE: The information contained in this document is intended for use by trained, professional technicians with the knowledge to properly and safely perform diagnosis and repairs on Mercedes-Benz vehicles, using Mercedes-Benz approved tools and equipment. It informs service technicians about conditions that could occur in certain vehicles and provides information that could assist in proper vehicle diagnosis, service, or repair. It does not indicate that a defect is present in any vehicle referenced in this document nor does it imply warranty coverage. DO NOT assume that a symptom or condition, or a described cause of a symptom or condition, affects any particular vehicle or groups of vehicles, or that a described repair applies to any particular vehicle or groups of vehicles. There can be multiple causes resulting in the same or similar symptoms or conditions described in this document, and trained professional service technicians must use their diagnostic skills to make evaluations on a case-by-case basis. The information contained in this document does not guarantee warranty coverage nor does it extend the vehicles warranty in any way.
- 11008072Complaint White plastic insert present on microphone assembly. See figure A for example. Cause The insert (breathable filter) is designed to be inside for dust protection and air flow control. Remedy Do not remove the breathable filter from the microphone assembly. This part is designed to be in the microphone and should remain in the vehicle. Note: If TIPS support is required for microphone symptoms please open a TIPS case and reference this LI.
- 11008056Complaint Check engine light on. Fault code P207273 - "Throttle actuator valve is blocked due to ice" stored. Engine may crank and not start. Fault code P210185 may also be stored. Cause Moisture freezing on throttle actuator during extreme low ambient temperatures. Remedy Update software of engine control module. Software increases throttle valve flapping after engine turned off to prevent moisture buildup.
- 11007974Complaint Headlamps leaking or fogged Cause The fogging of the headlamp is a natural phenomenon which can occur under certain climatic conditions. In contrast to a leaky headlamp, physical fogging does not result in a technical impairment of the headlamp. A leak test must be performed to determine if physical fogging exists or if the headlamp is leaky. Remedy In advance, observe LI82.10-P-078301 "Headlamps or Front Fog Lamps Leaking or Fogged". 1. Prepare headlamp/check for external damage: For headlamps with a closed system 1. Check the headlamps for any external damage and check also for correct seating of the Gore-diaphragm/correct latching of the cover caps. 2. If the headlamp exhibits any external damage, replace the headlamp. For headlamps with an open system 1. Check the headlamps for any external damage and seal off the vent then make sure the cover caps are latched correctly into place. 2. If the headlamp exhibits any external damage, replace the headlamp. Note: A headlamp with external damage is not a warranty or goodwill case. 2. Leak test of headlamp with overpressure: Connect test adapter to pressure tester. (Figure 1) Check test adapter for leak tightness. To do so, connect plug and coupling (picture 2) and apply a maximum overpressure of 30 mbar. The pressure must remain constant. If the pressure does not remain constant, use a new adapter. Seal all the outlet openings using sealing compound and the given diaphragm with the plunger (picture 3). (Picture 4) Make allowance for the different headlamp variants here (there are different outlet openings). Check if the headlamp needs to be removed to gain access to the diagnostic socket on the headlamp housing. Plug the adapter onto the diagnostic socket on the headlamp housing. (Picture 5). Apply a maximum of 30 mbar overpressure to the headlamp housing. Note: If the maximum overpressure of 50 mbar is exceeded the headlamp seal will be damaged. If a pressure drop of less than 10 mbar is measured within 30 seconds, the headlamp is not leaky and the problem is down to natural physical fogging. If a pressure drop of more than 10 mbar is measured within 30 seconds, the headlamp is leaky. Note: The leaky position can be localized with the aid of soap suds. Replace any leaky headlamps. Note: Desiccant packs can be installed for headlamps that are not leaky. See: LI82.10-P-064766 Fogged headlamp, desiccant pack installed - open ventilation system LI82.10-P-078304 Fogged headlamp, desiccant pack installed - closed ventilation system
- 11007972Complaint After clicking on the "Radio" selection function, the radio does not start and instead a permanent loading wheel is displayed. See attached picture for example. Cause Software version Remedy A26/17 - MBUX multimedia system (Head unit) unit must be replaced. When the head unit is in this condition, a software update will not remedy the situation.
- 11007969Complaint When using the offroad display in the MBUX, the "Transparent hood" function cannot be activated using the camera symbol. Cause MBUX FUP5 software: E504.3 (A 297 904 97 00) E504.4 (A 297 904 03 01) Remedy The remedy is currently being developed.
- 11007956Mercedes-Benz AG, the manufacturer of Mercedes-Benz vehicles, has determined that on certain MY 2020-2023 CLS (257 platform), E-Class (213 and 238 platform), GLE (167 platform), and AMG GT 4-Door (290 platform) vehicles, the engine control unit software does not correspond to current production specifications. As a consequence, the functionality of the post-catalyst oxygen sensor may be impaired due to increased thermal loading. MBUSA will conduct a service campaign. An authorized Mercedes-Benz dealer will update the engine control unit software.
- 11007858Complaint The "Easy entry and exit feature" function deactivates itself after a brief period. Cause The cause is currently being investigated. Remedy A remedy is currently not available. A software update in the seat control unit does not solve the problem. The document will be updated once the reason has been analyzed and a remedy is available.
- 11007857Complaint Customer concern of Air Conditioning not cooling. Note: For vehicles produced during or prior to June 2023, a TIPS case is not necessary. However, parts from repairs on such vehicles may be requested back for analysis at the QEC. Therefore, please follow parts disposition in NetStar. Repairs where parts are not returned per parts disposition instructions, or parts found to be NTF (no trouble found) are subject to debit. ALL steps, with the exception of videos, should be documented and uploaded with the claim submission. Cause Possible refrigerant leak at the evaporator. Remedy Perform the following measures : 1. Initial Quick Test 2. Create a short video of the actual pressures via AC machine, showing the engine running, and hold a copy of the VIN/RO in view as well. 3. Picture of the forming gas check being performed with VIN/RO in view. 4. OBS recording of XENTRY AC actual values of compressor request to be on and current value. (Instructions in Attachments) 5. Video recording of the leak being found via sniffer at the R/F AC drain after removing the under dash panel. (see attached videos) 6. If the evaporator is found to be leaking via sniffer, another video needs to be uploaded (or a continuation if only making the video after checks), showing the expansion valve being checked for leaks. 7. If no leaks are found with the sniffer at the expansion valve, spray soapy water mix on the expansion valve and check for leaks. Upload a video showing the spray test and VIN. 8. Open a TIPS case in the HV/LV inbox labeled "167 Evaporator Suspected of Leaking" with all attachments. "NO TIPS case needed on vehicles during or prior to June 2023"
- 11007796Complaint Individual functions such as sliding sunroof or roller sunblind can no longer be operated using the gesture recognition system. Cause Gesture recognition system control unit software N168 Remedy For vehicles before modification year 23/2: A remedy is currently being developed. Replacing parts will have no effect. For vehicles as of modification year 23/2: Considered to be a series production configuration. A change will not be possible in future.
- 11007753Complaint Headlamp or front fog lamp leaky or fogged Cause Fogging of the headlamps is a natural phenomenon, which can occur under certain climatic conditions. It does not lead to any technical impairment of the headlamp. Headlamps comply with all applicable standards. If a pressure compensation diaphragm is fitted in the housing cover, then the lamp unit is a "closed system". Remedy Headlamp: Remedy 1 Clearing fogged/condensed LED headlamps and LED rear lamps: 1. Drive vehicle into workshop (temperature higher than +18 C/+64.4 F) and connect the exhaust extraction. Note: Do not perform an engine wash before the defogging test. 2. Switch off the engine and connect battery support via a charger. 3. Open the hood or trunk. 4. Switch on the lights. 5. Leave the vehicle in this state for 60 minutes. 6. Check for formation of condensation, a significant reduction in the formation of condensation must be clearly recognizable (thawing progress). Clearing fogged/condensed halogen/xenon headlamps: 1. Drive the vehicle into the workshop (temperature higher than +18 C/+64.4F). Note: Do not perform an engine wash before the defogging test. 2. Switch off the engine. 3. Open the hood. 4. Switch off the lights. 5. Leave the vehicle in this state for 60 minutes. 6. Check for formation of condensation, a significant reduction in the formation of condensation must be clearly recognizable (thawing progress). Note: If there is no visible reduction in the formation of condensation, check the headlamp for a defect. (See Remedy 2) It is not physically possible to defog the headlamps completely. Fogging does not impair the operation or the service life of the headlamp. Remedy 2 A Damaged headlamp can be identified as follows: 1. Check the headlamp for external damage and that the cover caps and the diaphragm are correctly seated. 2. Check the electrical connectors of the plugs and pins. 3. Check for leak tightness in accordance with LI82.10-P-078307. The test can only be conducted on headlamps. 4. If the headlamp or the rear lamp has any external damage, replace the component part in accordance with the WIS instructions. Note: External damage to the headlamp/rear lamp or faulty seating of the cover caps does not present a warranty or goodwill case. With headlamps, it is possible to install desiccant packs if the problem occurs repeatedly. Open ventilation system: LI82.10-P-064766. Closed ventilation system LI82.10-P-078304
- 11007728Complaint To insure vehicle down time is kept at a minimum and all required information is available when case is escalated, as well as assist technicians with checks that may help lead in resolving issue without case creation. THIS LI IS NOT TO BE USED AS A REASON FOR CASE CREATION BUT AS A GUIDE IF A CASE IS NEEDED Cause There are, at times, additional steps workshops can do to help diagnose and rectify transmission complaints. Remedy When opening a case for transmissions a EEPROM, Quick Test, and VGS CUL are absolutely necessary Please also check for any relevant LIs before opening case. Also, recommend having customer fill out Transmission Drivability Diagnostic Worksheet especially if complaint is hard to reproduce or intermittent (Work sheet Location: Xentry Portal >> Local Contents >> Diagnostic Info>> Diagnostic Worksheets ) If a previous repair attempt or visit was made for the same concern please include the date, mileage, and case number if applicable of that repair/visit with a short description of what was done. Follow IPR: ( LI27.00-P-073124 ) All IPR suggestions are covered by warranty and there is no need for cases to confirm IPR. Complete IPR suggestions and close out IPR process. If complaint is not fixed and IPR still suggests the same repair once closed out and run again, then a case may be needed. Transmission Health page is a good indicator of issues within transmission if clutch or brake pack stays NOK after adaptions and unable to be made to a green OK then an internal fault is present. Proceed with replacing affected clutch pack. IF more than 3 are red and NOK replace transmission (include printout with warranty claims) **** FOR 167 chassis with M264 engine B08 may be red and NOK, IGNORE this, B08 is still okay **** Shift complaints: Note: AMG variants are known to have a harsher shift see LI27.60-P-075147 It is always worth comparing to a like vehicle if possible to see if shift is uncharacteristic Perform Valve flushing procedure Perform 5 Torque Converter adaptions in a row (Save the results page) Perform standstill adaptions (Save the results page) Drive adaptions if necessary: Drive C mode keep RPM between 2000-2200rpm and lightly let off pedal to force shift wait 2-3 sec then roll on throttle to rpm back up to 2000-2300 rpm repeat for gears 1-3 *For gears 4-8 allow rpm up to 2700 and let off slightly to force upshift = repeat x 10 *For downshift - highest gear possible 8 or 9 - allow decel with light brake drag (allow at least 5s between downshifts for trans to adapt. Go down to 2nd and repeat x10 *Change to sport mode and repeat process again *Lock car to allow sleep at least 10min and restart and road test for quality. After adaptions a new EEPROM should be recorded and included with the original if opening a case Understand shift complaints need to be reproducible to address. If needed drive with client to reproduce the complaint. If shift complaint is intermittent a CAN trace of the issue occurring will be useful (see attached instructions) Shudder: If there is a shudder monitor torque convertor actual values to see if it occurs during slipping, Additionally can lock up convertor and drive to see if issue is resolved Jolting/Shudder: If the vehicle is AWD: unplug AWD control unit or drive vehicle in dyno mode to see if transfer case is causing the jolt/ harsh shift If located from transfer case check fluid and perform a flush if needed to try to rectify the issue. Vibrations: NVH trace is needed, what level vibration is being experienced and where is it located? Is the Vibration felt in neutral? Dyno mode? Does it change with speed? Etc. Noise complaint: Isolate the noise location using chassis ear. MUST attach a sound recording or video of the noise. Describe when the noise is present: Does it change with gear or speed? Does it occur with vehicle in neutral or in glide mode? Does operating temperature effect noise? Does incline/decline or steering angel effect noise?
- 11007673Complaint Damage or discoloration to paint protection films on vehicle. Cause Chip protection films are a wear item that may need to be replaced over the life of the vehicle. They are typically not covered by vehicle warranty. Remedy To properly install a paint/chip protection film, please follow the below guidelines: #1 - Utilize a solution that is 0.2% soap solution (1,000ml of water + 2ml of liquid soap). #2 - Clean the paint surface and ensure it is dust-free. #2a - When cleaning, you can utilize isopropyl alcohol (Rubbing Alcohol) to assist with cleaning. #2b - We recommend a lint-free rag for secondary dusting. #3 - Wet hands with the soapy water solution to protect the adhesive surface. #4 - Remove the backing paper from the film completely. #5 - Moisten the vehicle surface with the soapy water. You can also lay the protective film with adhesive side out onto the wetted surface to also cover the adhesive layer in the soapy water solution. #6 - Remove film and flip over to gently place adhesive side against the paint surface. #7 - Working from the center out, use a squeegee to press the soapy water solution out from under the film. Use sufficient pressure to firmly press the film into the paint surface, but not an excessive amount to damage or stretch the film. #8 - Allow film and paint to "cure" until all of the moisture has evaporated. At this time the adhesive should be dried and cured enough for sufficient hold to release the vehicle.
- 11006700Complaint Once the head unit A26/17 is updated to the FUP4 software release E445.0, it may be the case that online connectivity is no longer available Cause E445.0 FUP4 software release Remedy Update the A26/17 - MBUX multimedia system (Head unit) software to E445.2 FUP4 Optimized or newer version to resolve the complaint.
- 11006695Complaint When using the offroad display in the MBUX, the "Transparent hood" function cannot be activated using the camera symbol. Cause MBUX FUP5 software: E504.3 (A 297 904 97 00) E504.4 (A 297 904 03 01) Remedy The remedy is currently being developed. Note: A remedy is not yet available. Replacing the hardware does not resolve the symptom. Do not replace the MBUX for this concern. The information will be updated accordingly as soon as a remedy is available.
- 11006678Complaint Head-up display permanently or sporadically unavailable - with warning message in driver display Head-up display permanently or sporadically unavailable - without warning message in driver display Display permanently or sporadically discolored and out of focus Cause Previous N133/1 - Instrument cluster (IC) control unit software. Remedy Update the N133/1 - Instrument cluster (IC) software.
- 11006550Complaint Customer concern of Air Conditioning not cooling. Cause Possible refrigerant leak at the evaporator. Remedy Perform the following measures : 1. Initial Quick Test 2. Create a short video of the actual pressures via AC machine, showing the engine running, and hold a copy of the VIN/RO in view as well. 3. Picture of the forming gas check being performed with VIN/RO in view. 4. OBS recording of XENTRY AC actual values of compressor request to be on and current value. (Instructions in Attachments) 5. Video recording of the leak being found via sniffer at the R/F AC drain after removing the under dash panel. (see attached videos) 6. If the evaporator is found to be leaking via sniffer, another video needs to be uploaded (or a continuation if only making the video after checks), showing the expansion valve being checked for leaks. 7. If no leaks are found with the sniffer at the expansion valve, spray soapy water mix on the expansion valve and check for leaks. Upload a video showing the spray test and VIN. 8. If the vehicle is produced AFTER June 2023, a TIPS case is required for replacement. Please open a TIPS case in the HV/LV inbox labeled "167 Evaporator Suspected of Leaking" with all attachments. 9. For vehicles produced during or prior to June 2023, a TIPS is not necessary. However, parts from repairs on such vehicles may be requested back for analysis at the QEC. Therefore, please follow parts disposition in NetStar. Repairs where parts are not returned per parts disposition instructions, or parts found to be NTF (no trouble found) are subject to debit. NOTE: Please see the list of WIS documents for forming gas leak check and recharging of the system. All documents, with the exception of videos need to be uploaded for the warranty claim. Videos are only needed if a TIPS case is opened. Ensure that a full vacuum is pulled on the system for at least 30 minutes after replacement Condenser replacement is NOT authorized as a suitable repair in lieu of the dryer not being available.
- 11005347Complaint Yellow coolant warning system message appears in instrument cluster. Fault code P048392 or P048397 present in N127 Powertrain Control Unit. Cause Faulty communication between fan and control unit N127-PTCU. Remedy If other fault codes related to engine fan are present, process these first. Replace engine fan with part as specified in XENTRY parts information. Group 50/015. Note: Do not install a lower wattage fan than what was originally installed in vehicle.
- 11005344Complaint Customer complaints relating to automatic transmission 725.0 (NAG3 Classic / 9G-TRONIC automatic transmission) and 725.1 (NAG3 facelift/9G-TRONIC automatic transmission facelift) For faster, more effective and more targeted diagnosis, Intelligent Predictive Repair (IPR) has been developed and integrated into XENTRY Diagnosis. This ensures an automated diagnosis process. Cause As part of the on-going quality monitoring process and associated quality and damaged part appraisals, a high number of ineffective repairs have been discovered. Such ineffective repairs have a negative impact on all those involved. For the customer, it means high costs and long repair times and for the dealer, it may result in the warranty claim being rejected. Remedy General note: IPR is available for: NAG3 Classic (automatic transmission 725.0) NAG3 - AMG sports models (AMG 43 and AMG 53 with converter) NAG3 - AMG 63 NAG3 - Hybrid
- 11005334Complaint Hand detection system not operating correctly / vehicles with code 266 Fault message in instrument cluster: "Active Emergency Stop Assist not available" "Active Lane Keeping Assist not available" Cause Possible causes: the hand detection mat, the hand detection control unit, the contacts and the steering wheel harness. Remedy Test Procedure: Perform an initial quick test with freeze frame data. Save the N179 - Hand detection system (HE) and N62/4 - Driver assistance system (SG-FAS) control unit logs. Note the fault frequency of fault codes set. Delete the N179 and N62/4 fault memory. Using both hands, "scan" the steering wheel all the way round, including the chrome molding at 6 o'clock (see Picture 1). Read out fault memory and follow steps below for any faults set. Remedy: Vehicles with control unit N179 - Hand detection system (HE): B1E7614: Check contacts and wiring harness in steering wheel by carrying out a visual check for damage, pinched areas, loose connections, etc. (examples in Figs. 2 and 3); If no damage is noted replace the N135 - Steering wheel electronics (LRE) and reassess. If fault code returns replace the steering wheel. Please check the wires and connections in the steering wheel. Afterwards, please check whether the complaint is caused by over torqued screws on steering wheel trim pieces. To do this, please loosen the screws slightly and reevaluate the situation. (Picture 4). P164456: Perform SCN coding. P1CA000: Perform an initial start-up on the N179 hand detection control unit. Faults in N62/4 - Driver assistance system (SG-FAS) control unit with U186B29, U0429E0, U042941, U042929, U042902, U0429E1: If no fault is stored in the N179 control unit: Scan steering wheel as indicated in the test procedure and check whether the fault is reproducible. If no fault code is stored in the hand detection control unit, the fault codes in the driver assistance systems control unit are precautionary messages. Software for the N62/4 - Driver assistance system (SG-FAS) is in preparation to reduce erroneous messages in the driver display.
- 11005331Complaint Only vehicles with a variable transfer case are affected. Can be identified through control unit N45 or N15/7 in the quick test When accelerating with light load, vibrations or jolting sensation may come from the drivetrain Cause Modified oil quality of the transfer case over time Remedy Check initial quick test for faults in the following control units N45 - All-wheel drive (ARS) N127 - 'Drivetrain' (PTCU) control unit Y3/8 - Transmission control for 9-gear transmission (VGS) N3/10 - Engine electronics for combustion engine If faults are present, process them as per the guided test in Xentry If no faults are present: Check the oil level of the transmission If the oil level is correct: Unplug the connector for the transfer cases control unit Reassess the vehicle on a subsequent test drive If the complaint no longer occurs: Perform an oil change of the transfer case Reassess the vehicle following the oil change If the problem continues to occur with the plug removed or after the oil change has been carried out: Create a TIPS case with the following data Initial quick test with fault freeze frame data EEPROM data from Y3/8 Transmission control unit EEPROM data from N45 All-wheel drive Injector performance data
- 11005313Complaint Check engine light on and fault code P019185 current or stored in MED41 control unit. Adaptation and misfire faults may also be stored. Vehicle may enter limp home mode. Cause False detection of rail pressure sensor out of range. Remedy Update software of engine control module N3/10. Reset mixture adaptation and clear fault codes.
- 11005294Complaint Rear lamps fogged up/not leaktight. Cause Fogging of the rear lamps is a natural phenomenon, which can occur under certain climatic conditions. This does not lead to any technical impairment of the rear lamps. Remedy Rear lamp: Remedy 1: Clearing fogged/condensed rear lamps: 1. Drive the vehicle into the workshop (temperature higher than +18 C/+64.4 F) Note: Do not wash the vehicle or subject it to high-pressure cleaning before the defogging test. 2. Switch off the engine and connect battery support via a charger. 3. Open the trunk. 4. Switch on the exterior lighting. 5. Leave the vehicle in this state for 60 minutes. 6. Check for formation of condensation -> a significant reduction in the formation of condensation must be clearly recognizable (defogging progress).
- 11003211Complaint The following event codes are logged in control unit IDC213 - N62/4 (Intelligent Drive control unit): U0401FC and U0401FD. Cause Under analysis. Remedy Neither of the two event codes is relevant for the functioning of control unit IDC213 - N62/4 (Intelligent Drive control unit) and can be ignored.
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