2020 Mercedes-Benz AMG GT S

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.

• 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.
• 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.
• 11008032Complaint Noises/ squealing from the service brake in various driving situations and ambient conditions Cause Frictional vibrations Remedy AMG brake systems are designed for high loads. This can result in noises under certain operating conditions. These are dependent on speed, brake pressure or ambient conditions such as temperature and air humidity. (Extract from the owner's manual) If customer complaints are received, please proceed as follows: Check whether, apart from this document, an additional document exists for the model series in question, and if so, work through it Check whether the complaint can be reproduced and at which axle the noises occur (ideally together with the customer while driving) Check the friction pairings of the affected axle for wear, mechanical damage or localized overheating damage. a) If this is the case, replace the damaged component parts and assess the brake again with regard to noise. b) If there no obvious visible or technical problems with the brake system, we recommend bedding in the brakes by following the procedure below: Before trip, the mileage incurred must be clarified with the customer (approx. 50 km) Select a suitable route Brake the vehicle 15 times with a brake pressure of approx. 30 bar (have the passenger read it out using XENTRY) from 100 km/h to 50 km/h (no emergency stops and no braking in the ESP control range). Maintain a cooling distance of approx. 1.5 km between brake applications Finally drive approx. 5 km to allow the system to cool Reassess the problem If this action fails to deliver the desired success, create a TIPS case with the following information: Observe SI00.00-P-0086A Have parts already been replaced? If yes, when and which parts (date, mileage)? How is the customer's driving profile, and when/where is it reproducible? Create a video/ sound file Attach usable pictures of the brake components on the affected axle (important: including the back of the lining)
• 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
• 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
• 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).
• 11003209Complaint DSI selection lever module cannot be switched to park position "P" - malfunction of "P" button Note: Vehicle can still be placed into park by opening driver's door, or turning off ignition. Please refer to operator's manual section, "Engaging park position P," for additional instructions. Cause Possible causes: 1. Contamination/ingress of dust 2. Short circuit due to ingress of water Remedy Clean printed circuit board under plastic housing and button "P": 1. Remove DSI (AR27.60-P-0901FRX) 2. Remove housing of DSI (see picture 1) 3. Remove cover around "P" button above printed circuit board (see picture 2) 4. Check printed circuit board: Liquid residues and/or contamination (cf. picture 3) 5. Check "P" button: Water residues and/or contamination (cf. picture 4) 6. Carefully clean the affected areas (using contact cleaner) 7. Reassemble and check the functionality 8. If fault code still present after rework -- follow available guided test remedy.
• 10249740Dear Mercedes-Benz Owner: On behalf of Mercedes-Benz USA, LLC (MBUSA), thank you for being a part of the Mercedes-Benz family. We hope that youre enjoying your vehicle. Here at MBUSA, we are committed to delivering an exceptional ownership experience. In our continuing efforts to ensure the proper performance and quality of your vehicle, we are writing to inform you about an Over-the-Air (OTA) Service Campaign to update the Communication Module software on certain Model Year 2020-2023 A-Class, C-Class, CLA, CLS, E-Class, GLA, GLB, GLC, GLE, GLS, AMG GT, and S-Class vehicles. This update will improve the system stability and allow for better accessibility of Mercedes me services. This OTA update will be provided free of charge and will be performed in the background. No action is needed on your behalf. Your vehicle does not appear to have an active Mercedes me connect subscription. In this case, the OTA update will be performed unless you choose to opt-out from receiving this OTA update. What will your Dealer do? NO DEALER ACTION IS NECESSARY for this OTA update. You do not need to visit a Mercedes-Benz dealer. Opting-out of this OTA Update: Customers who are not subscribed to the Mercedes me connect service may opt-out of this OTA update by emailing or by calling 1-800-FOR-MERCEDES. The opt-out period will start on January 5, 2024 and end on February 4, 2024. If you choose to opt-out, the described update will not be available for your vehicle as an additional workshop measure. No action is necessary for Opting-In. Once the opt-out period has closed on February 4, 2024, this OTA will be automatically downloaded and installed. Thank you for allowing us to continue taking care of your vehicle.
• 10249726Mercedes-Benz AG (MBAG), the manufacturer of Mercedes-Benz, has determined that in certain MY 2017-2021 C-Class, CLA, CLS, E-Class, GLC, GLE, GLS, AMG GT, S-Class, SL, and SLC (205, 117, 257, 213/238, 253, 166/292, 190/290,217/222, 231, 172) vehicles, the software of the communication module does not correspond with the latest series production configuration. This free of charge update includes quality-enhancing optimizations for the communication module to improve the system stability and better availability of the Mercedes me services. The update is downloaded and installed in the background. This process takes approx. 15 minutes. During the installation, the system can be used without restrictions. The new software will be active after the vehicle has been switched off. MBUSA will conduct an OTA service campaign. Remote software updates are automatically downloaded and installed in the customers vehicle free of charge without an additional workshop visit via the data link of the communication module. All customers will be mailed a letter informing them of this software update.
• 10249495Noises in the steering column area when steering. Under analysis. Check which area of the steering column the noises occur in. Do the noises tend to occur at the bottom in the driver footwell or do they tend to occur in the area of the steering column switch module (MRSM/SCCM)? If the noises occur in the area of the MRSM/SCCM, work through the following points: - Loosen screws of the MRSM/SCCM and steering wheel, re-align the MRSM/SCCM, and re-fasten the screws (see WIS). Sometimes there is stress at the MRSM/SCCM and noises occur. - If noises continue to occur, swap the MRSM/SCCM into a vehicle without any (noise) complaints. - If the noises occur with the MRSM/SCCM complained about when it is in the vehicle without a complaint (donor vehicle), the MRSM/SCCM can be replaced. - If noises also occur in the customer vehicle with the MRSM/SCCM from the reference vehicle, the MRSM/SCCM is not the cause and must not be replaced. Notes: - When installing the MRSM/SCCM, make sure that no damage occurs! - Only disassemble and mount all component parts in the "straight-ahead position" (see also WIS). - Please refer to this LI in the "Notes" section of the warranty claim!
• 10249482The steering wheel generates grinding noises between the steering wheel and steering column switch module during steering maneuvers See example file in the attachments area: Lenkrad-Schleifgerusch_SteeringWheel-GrindingNoises.mp4 The plastic cover on the back of the steering wheel is not positioned correctly and may therefore rub against the steering column switch module Please use the following noise files for the damaged part analysis: 1. Grinding noise | pot. cause: steering wheel | see attachment: Lenkrad-Schleifgerusch_SteeringWheel-GrindingNoises. mp4 2. Creaking/cracking noise | pot. cause: steering column switch module | see attachment: MRSM-Schleifgerusch_ SCCM-GrindingNoises.MOV If the noise is due to the steering column switch module, please use LI46.10-P-077314. Check for grinding areas on the steering wheel: Please check the covers on the rear for protrusion and, if necessary, remount. 1. Mask off openings on back of steering wheel with adhesive tape 1. Mark the back of the steering wheel with colored chalk (see Picture 1) 2. Mount steering wheel on steering column switch module and turn the steering wheel from left lock to right lock ten times. 3. The chalk will now have disappeared in the areas where there is rubbing (see Picture 2) Warning: Ensure that no cables and visible areas of the steering wheel are damaged. The abrasive excess material on the back of the steering wheel must be carefully removed with a Dremel tool. Tip: You will need to remove approx. 0.1 mm to 0.3 mm of material (example: Picture 3) Make sure that none of the ground-off material gets into the steering wheel. After removing the material, clean the entire back of the steering wheel with a 1% soap solution.
• 10248212In our continuing efforts to assure the proper performance of Mercedes-Benz products and to enhance the satisfaction of our customers, Mercedes-Benz USA, LLC ("MBUSA") is extending the warranty coverage on the engine thermostat (including software update) installed in certain Model Year ("MY") vehicles (with engines M176, M177, M178) listed below from the original New Vehicle Limited Warranty of 4 years/50,000 miles to 15 years/150,000 miles (whichever occurs first), due to the following condition: In the affected vehicles, the sealing ring in the engine thermostat could detach, causing a delay in the heating of the engine coolant. This may also cause the check engine Malfunction Indicator Lamp ("MIL") to illuminate. Please follow the work instructions added to this NCU to remedy the issue. Please be advised that all repairs being claimed under this extended warranty must have a quick test uploaded with the following fault code information and may be audited. P012800 - Coolant Thermostat (Coolant Temperature Below Thermostat Regulating Temperature) All repairs found to be functioning properly or without proper documentation will be returned and the claim debited in full. Only the following damage codes and parts may be claimed for the aforementioned repairs: Damage Code(s): 20102 - Insert, coolant thermostat o 52 - Does not operate correctly o 41 - Hard closing 20103 - Housing/cover, coolant thermostat o 73 - Electrical fault 2030T - Heating element, coolant thermostat o 53 - Insufficient effect/power o 73 - Electrical fault
• 10248203Mercedes-Benz AG, the manufacturer of Mercedes-Benz vehicles, has determined that on certain MY19-23 A-Class, CLA, CLS, E-Class, EQB, GLA, GLB, GLC, GLE, GLS, AMG GT (177, 118, 257, 213, 238, 243, 247, 253,167, 290 platform) vehicles, the head unit software does not correspond to the current series production configuration. The head unit will receive an OTA update to optimize the "Live Traffic Information" service for the navigation system. Additional product improvements including infotainment system robustness will be implemented. The software update will be downloaded in the background. The subsequent installation takes roughly 45 minutes and requires the customer's consent in the vehicle. During installation, the system can be used without restriction. The new software will be active after the vehicle has been switched off. MBUSA will conduct an OTA service campaign. Remote software updates are automatically downloaded and installed in the customers vehicle free of charge and do not require a dealer visit. No customer letter will be mailed for this OTA software update.
• 10248195Mercedes-Benz AG (MBAG), the manufacturer of Mercedes-Benz vehicles, has determined that on certain MY19-23 A-Class, C-Class, CLA, CLS, E-Class, EQB, G-Class, GLA, GLB, GLC, GLE, GLS, AMG GT, S-Class (177, 205, 118, 257, 213, 238, 243, 463, 247, 253, 167, 290, 217, 222 platform) vehicles, the communication module system software does not correspond with the latest series production configuration. The communication module will receive an OTA update to improve the system stability and allow for better accessibility of Mercedes me services. MBUSA will conduct an OTA service campaign. Remote software updates are automatically downloaded and installed in the customers vehicle free of charge and do not require a dealer visit. No customer letter will be mailed for this OTA software update.
• 10248162Crease formation on genuine leather seat covers in vehicles with low mileage Objects left on the seats for extended periods of time (pressure marks). Objects wedged between the seat backrest and seat cushion (e.g. seat belt buckle). Light initial creases due to vehicle handling. Light creases in the outer covers originating from the production process (missing finish). Heat treatment of the seat covers using heat gun and plastic wedge. Be very careful to not overheat the seat material!
• 10244837The "SOS nonfunctional" message appears sporadically in the instrument cluster of the vehicle. The fault code B129C00 is stored in the control unit log. The message occurs in particular after the vehicle has been non-operational for an extended period of time; the message then disappears of its own accord after a few minutes. No functional limitation to the emergency call system is to be expected. Software error in N112/9 control unit for telematics services (HERMES). Software update for control unit N112/9 - Control unit for telematics services (HERMES) to software release E522.8. If, against expectations, the erroneous display of the message in the instrument cluster continues to occur following the update, please create a TIPS case.
• 10241790The Mercedes me connect services cannot be activated. The remote status data does not update. Error in N112/9 - control unit for telematics services (HERMES). In the HERMES control unit log, under the "URL" tab, the value DEFAULT is stored for "atpServerUrl" and/or "rcsServerUrl". Please carry out a re-commissioning of the control unit N112/9 - Control unit for telematics services (HERMES), which includes both a software update as well as coding. The fault will be rectified by the newly included coding. As a result of the software update to the current software of the control unit N112/9 - Control unit for telematics services (HERMES), this fault will no longer occur in future.
• 10241527Mercedes-Benz AG (MBAG), the manufacturer of Mercedes-Benz vehicles, has determined that on certain MY 2018-2023 C-Class, EQE, EQE SUV, EQS, EQS SUV, GLC, GLE and S-Class (206, 295, 294, 297, 296, 254, 167 and 223 platform) vehicles, the communication module software does not correspond with the latest series production configuration. The update is free of charge and will be carried out in the background. The installation will eliminate software errors for a better entertainment experience. The update will show after the ignition has been cycled. MBUSA will conduct an OTA service campaign. A workshop visit for the customer is not required since remote software updates are automatically downloaded and installed in the customers vehicle. The OTA may be validated as successful on the customers Mercedes Me connect app under Over-the-Air Vehicle Updates as Update for the communication module. If the OTA is successful it will show a green installed and date of installation in the Over-the-Air update section.
• 10240161The red battery light in the instrument cluster lights up while driving. Voltage drop in alternator / battery / chassis main circuit.
• 10231032Complaint Tailgate opens unintentionally. Cause Accidental or unnoticed activation of the button to open the tailgate on the vehicle key. E.g. when stored in trouser pocket, handbag etc. Remedy As of the 6th generation, the vehicle key can be recoded so that the tailgate no longer opens as a result of a long press on the button, but by double-clicking on the button instead.
• 10228820Mercedes-Benz AG ("MBAG"), the manufacturer of Mercedes-Benz vehicles, has determined that on certain Model Year (MY) 2020 AMG GT-Class (190 platform), the fuel system control unit software does not correspond to the current series production configuration. It is possible that the check engine malfunction indicator lamp (MIL) may not illuminate as intended. What Were Doing MBUSA will conduct an Emission Service Campaign. An authorized Mercedes-Benz dealer will update the fuel system control unit software on the affected vehicles.
• 10228807Complaint Height adjustment of electric steering column adjustment jammed in the top/bottom adjustment position (e.g. with Easy Entry function). Cause Height adjustment moves to the top/bottom limit stop and jams.
• 10208670Mercedes-Benz AG (MBAG), the manufacturer of Mercedes-Benz, has produced certain MY 2021-2022 A-Class, CLS-Class, E-Class, GLA-Class, GLB-Class, GLE-Class, GLS-Class, and GT-Class (167, 177, 213, 247, 257, and 290 platform) vehicles without the augmented reality camera (ARC), as disclosed at the time of sale to the vehicle purchaser. As a result, the ARC and "Dash-cam" functions are currently not enabled. What Were Doing MBUSA will conduct a Service Campaign where an authorized Mercedes-Benz dealer will retrofit the augmented reality camera to the vehicle and enable the ARC and Dash-cam functions on applicable vehicles.
• 10207183Complaint Sporadic warning message in instrument cluster "Engine oil pressure stop switch off vehicle" (or similar) is shown in red on vehicles with low mileage. Cause Directional control valve may stick. Remedy 1- Read off oil level in instrument cluster and correct if necessary. 2- Perform approx. 10-15 engine starts, then clear fault codes. 3- Perform road test with vehicle. If fault code reoccurs during road test: Install new directional control valve.
• 10206077"MY15+ M278 and M157 Equipped Vehicles with Fault Code ""P023400 Boost Pressure is Too High"" "
• 10206063"Functional impairment of 48 V on-board electrical system "
• 10205812The customer may note that the Dashcam feature is inoperable with one of the following complaints.
• 10205811The customer may note that the Dashcam feature is inoperable with one of the following complaints.
• 10205810The customer may note that the Dashcam feature is inoperable with one of the following complaints.
• 10205809The customer may note that the Dashcam feature is inoperable with one of the following complaints:
• 10205806Upon selecting navigation, the central display may show the following message: "Map data does not match with your system. Please insert a medium containing the corresponding map data". the navigation menu cannot be opened.
• 10205803The mobile phone address book may not be transferred completely to the multimedia system COMAND, Audio 20, or MBUX. The contact list may not be fully populated and in some instances, the call list will display telephone numbers but no names.
• 10205797The tailgate can only be fully opened by operating it again, multiple times where necessaryor by manually raising tailgate.
• 10202514M17x.xxx Check Engine Light on with Misfire DTC's
• 10199660Coolant warning in instrument cluster - Leak in coolant line
• 10199654"Free browsing, Internet access via Wi-Fi hotspot and Internet radio nonfunctional"
• 10191277In the quick test, faults P0A1402 and/or P0AB602 are stored in the Drive Unit, electrical fault or open circuit (signal error) in actuation system. Remedy: Replace both acceleration sensors for the engine mounts
• 10189407In XENTRY diagnosis, the message "MBUX multimedia system control unit is defective (hard drive, internal fault)" appears while attempting to communicate with the MBUX multimedia system (A26/17)
• 10189404Complaint: Various causes are possible. The faults listed in the various causes do not all have to be present at all times. Some of these complaints may overlap. Rely on the faults listed in the Cause section for identifying the correct Remedy. 1. No start 2. Yellow or red instrument cluster message for 48 V on-board electrical system battery (G1/3) 3. Limp home mode, overheating, A/C not blowing cold, or loss of acceleration Cause: Cause 1: Software causes intermittent no starts with fault B183387 in DC/DC converter N83/1 Cause 2: Software causes Permanent no starts with fault B183349 and B183371 in 48V battery G1/3. Cause 3: Hardware short circuit in 48V system causes fault B183319 in 48V battery Cause 4: 48V battery detects abnormality and disconnects causing additional symptoms: Limp Home Mode, overheating, A/C not blowing cold, or loss of acceleration This cause will always have fault code in G1/3: B183371 but will Not have B183349. Remedy: Note: each of these remedies correspond to a specific cause. Make sure to match correct Cause with Remedy. Remedy 1: Update software in G1/3 (48V battery) using newest Xentry software and AddOns Remedy 2: 1. Check software version in 48V battery via quick test. If 19/46 000 replace only 48V battery (regardless of other faults)

Every Mercedes-Benz AMG GT S model year

Bars are owner complaints, dots mark years with recalls. Select a year to open its report.