2007 Mercedes Benz S550

Owner complaints

What owners report most

1. Power train13
2. Suspension12
3. Electrical system11
4. Vehicle speed control9
5. Engine8
6. Unknown or other6
7. Engine and engine cooling4
8. Air bags3
9. Fuel/propulsion system3
10. Steering3

Latest complaints

• Sep 24, 2024GA
  Electrical system · Exterior lighting

  I went to replace my low beam and high beam bulbs on the passenger side and found that the wiring for the low beam had 0 insulation on it and I installed the new high beam bulb and the wires starting arcing causing the car to turn off the high beams and start smoking from the headlight assembly.

• Jun 2, 2024NV
  Steering · Suspension
  Vehicle's body movement or damping motion while traveling on highway responds awkwardly. The vehicle has a waddle or a side to side motion instead of an up/down motion while traveling over the highway at 60 mph. My initial thoughts were to replace the vehicle's (air ride) struts. I chose to have…

  Vehicle's body movement or damping motion while traveling on highway responds awkwardly. The vehicle has a waddle or a side to side motion instead of an up/down motion while traveling over the highway at 60 mph. My initial thoughts were to replace the vehicle's (air ride) struts. I chose to have Mercedes-Benz of Tyler analyze the vehicle ride problems which at that time involved the self -leveling adjustment (up/down) of the vehicle. Mercedes-Benz of Tyler determined and replaced the air compressor and valve block at 61,000 miles on March 16, 2023 to resolve the problem. Although no recalls were found for this vehicle, I've spoken with other owners who own S-Class vehicles and discovered NHTSA Campaign I.D. 08V405000 with a report date August 01, 2008 was issued. I believe this vehicle should have been included in that campaign. This vehicle has not been in an accident nor do I want to be. I'm seeking resolution to this problem prior to an accident or injury occurs.

• May 22, 2023TX205,000 mi
  Parking brake · Suspension
  The contact owns a 2007 Mercedes Benz S550. The contact stated that after starting the vehicle, it was discovered that the rear passenger’s side and front driver’s side air suspension had failed, and the vehicle was leaning and was unstable. Additionally, the message "Parking Brake - Check Manual"…

  The contact owns a 2007 Mercedes Benz S550. The contact stated that after starting the vehicle, it was discovered that the rear passenger’s side and front driver’s side air suspension had failed, and the vehicle was leaning and was unstable. Additionally, the message "Parking Brake - Check Manual" was displayed. The cause of the failure was not yet determined. The local dealer was contacted and notified of the failure. The manufacturer was not contacted. The failure mileage was 205,000.

• Feb 8, 2023NC131,989 mi
  Suspension
  The contact owns a 2007 Mercedes-Benz S550. The contact stated while driving at approximately 65 MPH, the vehicle was bouncing and pulling to the left and the right. The contact stated that the steering wheel was vibrating. The contact stated no warning lights were illuminated. The contact had…

  The contact owns a 2007 Mercedes-Benz S550. The contact stated while driving at approximately 65 MPH, the vehicle was bouncing and pulling to the left and the right. The contact stated that the steering wheel was vibrating. The contact stated no warning lights were illuminated. The contact had taken the vehicle to a local dealer, where it was diagnosed and determined that the front strut and radial knuckles needed to be replaced. The vehicle had not been repaired. The manufacturer had been informed of the failure. The contact researched online and related the failure to NHTSA Campaign Number: 08V608000 (Suspension). The failure mileage was 131,989.

• Dec 2, 2022NJ170,000 mi
  Fuel system, gasoline · Suspension
  The contact owns a 2007 Mercedes-Benz S550. The contact stated that while driving 30-40 MPH, the vehicle started to decelerate independently. The contact also stated that he smelled an abnormal gasoline odor inside the vehicle. The contact veered to the side of the roadway. The contact stated that…

  The contact owns a 2007 Mercedes-Benz S550. The contact stated that while driving 30-40 MPH, the vehicle started to decelerate independently. The contact also stated that he smelled an abnormal gasoline odor inside the vehicle. The contact veered to the side of the roadway. The contact stated that the vehicle failed to restart. The contact was able to restart the vehicle after 10 minutes. Additionally, the vehicle had failed to start on several occasions even though there was fuel in the tank. The vehicle was taken to an independent mechanic where an unknown diagnostic test was completed. Additionally, the contact stated that the front suspension was previously replaced but had failed again along with the rear suspension. The dealer and the manufacturer were not notified of the failure. The vehicle was not repaired. The failure mileage was approximately 170,000.

• Oct 29, 2022CA
  Air bags · Electrical system · Suspension
  Struts and braking system have been unstable since I purchased the car. Wiring harness leaks oil and caused ecu to intermintinli turn off and on. Also the heat control timing caused car to over heat . Eventually I replaced the ecu 2 years ago at dealer . Mercedes has parts that are not safe to be…

  Struts and braking system have been unstable since I purchased the car. Wiring harness leaks oil and caused ecu to intermintinli turn off and on. Also the heat control timing caused car to over heat . Eventually I replaced the ecu 2 years ago at dealer . Mercedes has parts that are not safe to be in these operating conditions with such heat causeing wiring harness to short out and dealer said that and still put new ecu saying it was oil that damaged ecu. Mechanicly didn’t make sense but now due to recall it all makes sense. Ecu was never programmed correctly causeing unsafe driving hazards .

• Aug 24, 2021PA
  Engine · Service brakes · Structure › Body
  I brought a car from a car dealer in tampa Florida and when i got the car i noticed that the car would not pickup speed after pressing the gas pedal and it was asking me to turn off the engine or it will fail . also when i tried to put in coolant. I seen a milky substance that was coming out of the…

  I brought a car from a car dealer in tampa Florida and when i got the car i noticed that the car would not pickup speed after pressing the gas pedal and it was asking me to turn off the engine or it will fail . also when i tried to put in coolant. I seen a milky substance that was coming out of the hoses and in the overflow tank of the coolant reservoir which indicates issues with the heads or head gasket . also the title i got says salvaged which i asked if there was anything wrong with the car and the car dealer told me no . never disclosing that the car has been salvaged . there are other issues with the car that i forget because of so many issues with the car that i cant keep up with and i want to return the car to the car dealer and get my money back and have tried but they refuse to make good on the sale

• Apr 29, 2021FL
  Engine · Suspension

  Advised by service advisor need to replace me control unit(ecm), costing $2,000.82. Less than 5 years ago suspension costing 2,000. All work done at mercedes benz of south orlando.

• Jul 26, 2020NJ157,320 mi
  Unknown or other

  My panorama roof

• Mar 22, 2020AL74,800 mi
  Vehicle speed control
  The contact stated that I purchased a used mercedes from BMW of mobile. While driving the car it loses power. I was on the interstate and it loss power. I almost had a panic attack because the car was slowing down. I had no idea what was going on. I had to make my way to the right lane to get off…

  The contact stated that I purchased a used mercedes from BMW of mobile. While driving the car it loses power. I was on the interstate and it loss power. I almost had a panic attack because the car was slowing down. I had no idea what was going on. I had to make my way to the right lane to get off the road. The cars were driving 70 and 80 mph. They could have rammed into the back of my car not knowing my car was slowing down. I could have been killed driving this defective vehicle!!! I informed BMW and their technician said it was the battery and a starter. I paid $600 for the repair. They were wrong the car still loses power. I had to beg and plead with them to have mercedes of mobile diagnose the car. They said they would pay for the diagnosis but not the repairs. If I traded the car back to them they would deduct the repairs from the car. The other options were to let it go back to the finance company or take it to another dealership and not tell them what going on with the car. They paid mercedes of mobile to diagnosis it and they immediately stated the issue. I went to BMW to ask for a refund and repair but they refuse to do any about the car losing power. contacts also states that the mercedes would pay for diagnosis but not to repair. I would not recommend this dealership to anyone. They should have had this car checked out thoroughly at mercedes if they did not have the appropriate knowledge of the car. *Ln *tp

• Oct 3, 2019NC144,000 mi
  Engine and engine cooling › Exhaust system · Fuel/propulsion system
  TL* the contact owns a 2007 mercedes-benz S550. While driving 60 mph, the odor of fumes emitted through the vehicle and made the contact nauseous. Medical attention was not received. The contact called olympia pre owned auto (1806 wake forest rd, raleigh, nc 27608, (919) 301-8551) and was informed…

  TL* the contact owns a 2007 mercedes-benz S550. While driving 60 mph, the odor of fumes emitted through the vehicle and made the contact nauseous. Medical attention was not received. The contact called olympia pre owned auto (1806 wake forest rd, raleigh, nc 27608, (919) 301-8551) and was informed that they would call her back. The vehicle was not taken to a mercedes-benz dealer or independent mechanic for diagnostic testing or repairs. The manufacturer was not made aware of the failure. The approximate failure mileage was 144,000.

• Apr 27, 2019MO100,000 mi
  Power train
  My 2007 mb S550 base model stalled as I was merging on to the expressway in heavy traffic. After sitting on side of the road for 20mins, I started the car and it was making a whining noise and when I accelerate the noise gets louder. I drove the car to the nearest mercedes-benz dealership. I was…

  My 2007 mb S550 base model stalled as I was merging on to the expressway in heavy traffic. After sitting on side of the road for 20mins, I started the car and it was making a whining noise and when I accelerate the noise gets louder. I drove the car to the nearest mercedes-benz dealership. I was told that the transmission needs to be replaced. The car has been serviced with mercedes and only has 100K miles. This will cost $7,800.00 the service guy stated that this should not be happening on this car but unfortunately he stated that he has seen this before.

• Dec 26, 2018TN51,500 mi
  Fuel/propulsion system
  TL* the contact owns a 2007 mercedes-benz S550. While depressing the accelerator pedal, the vehicle leaked fuel. There was a strong odor of fuel inside and outside of the vehicle. There were no warning indicators illuminated. The vehicle was currently at knoxville mercedes-benz (10131 parkside dr…

  TL* the contact owns a 2007 mercedes-benz S550. While depressing the accelerator pedal, the vehicle leaked fuel. There was a strong odor of fuel inside and outside of the vehicle. There were no warning indicators illuminated. The vehicle was currently at knoxville mercedes-benz (10131 parkside dr, knoxville, tn 37922, (865) 777-2222) awaiting diagnostic testing. The vehicle was not repaired. The manfacturer was not made aware of the failure. The failure mileage was 51,500.

• Oct 30, 2018MD109,234 mi
  Electrical system · Engine · Suspension

  Error code p0019 cam sensor bank b, manufacturers used defective part that timing sprocket teeth have eroded due to defective parts used which have and will cause vehicle to stahl while running. Both front struts wear on all models that cause driving conditions that can cause death while driver excelration or stopping cause

• Aug 7, 2018GA55,000 mi
  Engine
  Balance shaft/idle gear material wore out causing timing chain to become loose and engine to jump timing while driving. engine locked up and died while going down the highway! Expensive repair that mercedes benz knows about!! They have an internal memo with a list of vin numbers that have the…

  Balance shaft/idle gear material wore out causing timing chain to become loose and engine to jump timing while driving. engine locked up and died while going down the highway! Expensive repair that mercedes benz knows about!! They have an internal memo with a list of vin numbers that have the faulty idler gear that wears out prematurely but won't recall the product because it usually wears out just after warrantee period! Something must be done!

• May 29, 2018VA
  Engine

  TL* the contact owns a 2007 mercedes-benz S550. While driving 10 mph, the engine stalled and the vehicle failed to restart. The contact planned to have the vehicle towed to alexandria mercedes-benz (200 s pickett, alexandria, va 22304, (703) 341-2100) for diagnostic testing and repairs. The manufacturer was not notified of the failure. The failure mileage and vin were not available. *Tt *tr

• Apr 1, 2018CA
  Air bags

  Takata inflators recall alerted me to have my car exsamed.as I use my car every day.

• May 30, 2017FL41,000 mi
  Suspension
  TL* the contact owns a 2007 mercedes-benz S550. After pressing the button to lift the vehicle's suspension, a malfunction warning indicator suddenly illuminated. The vehicle was taken to the local dealer (mercedes benz of south orlando located in orlando, florida) where it was diagnosed that the…

  TL* the contact owns a 2007 mercedes-benz S550. After pressing the button to lift the vehicle's suspension, a malfunction warning indicator suddenly illuminated. The vehicle was taken to the local dealer (mercedes benz of south orlando located in orlando, florida) where it was diagnosed that the air suspension system failed and needed to be replaced. The vehicle was not repaired. The manufacturer was not notified of the failure. The failure mileage was 41,000. updated 08/09/17*lj *cn

• Mar 10, 2017NC128,000 mi
  Fuel/propulsion system

  TL* the contact owns a 2007 mercedes-benz S550. The contact stated that there was an abnormal fuel odor coming from the rear of the vehicle. The vehicle was taken to an independent mechanic where it was diagnosed that the fuel sending unit was defective and needed to be replaced. The vehicle was not repaired. The manufacturer was notified of the failure. The approximate failure mileage was 128,000.

• Jan 25, 2017VA70,000 mi
  Engine
  TL* the contact owns a 2007 mercedes-benz S550. While at a stop light, the vehicle shut down and lost all power. The vehicle restarted and was taken to a dealer who was unable to diagnose the failure. The failure recurred. The contact called the dealer and was advised to tow the vehicle to the…

  TL* the contact owns a 2007 mercedes-benz S550. While at a stop light, the vehicle shut down and lost all power. The vehicle restarted and was taken to a dealer who was unable to diagnose the failure. The failure recurred. The contact called the dealer and was advised to tow the vehicle to the shop. The dealer was unable to diagnose the failure, but kept the vehicle for further observation. The manufacturer was not made aware of the failure. The failure mileage was approximately 70,000. The vin was not provided.

• Oct 6, 2016TX
  Unknown or other
  Takata recall- I took my vehicle into park place mercedes arlington in dallas, tx to get a diagnostic on my comand unit radio. the cd/dvd player would read the name of the disc but would not play it. an error message comes on that says disc error. I figured something on the inside may be dirty…

  Takata recall- I took my vehicle into park place mercedes arlington in dallas, tx to get a diagnostic on my comand unit radio. the cd/dvd player would read the name of the disc but would not play it. an error message comes on that says disc error. I figured something on the inside may be dirty and just needs to be clean as the discs were readable by the comand unit. the service tech said that the whole unit needs to be replaced and they can't repair it. $1800 for the repair on the same exact unit. An outdated unit that doesn't even have the newest technology. I feel like mercedes vehicles are too expensive not to be able to repair their parts and having to replace everything. mercedes needs to look into their comand units and consider a recall on these radios.

• Oct 6, 2016TX
  Unknown or other
  Takata recall-i took my vehicle into park place mercedes of arlington in dallas, tx to get a diagnostic on why my panoramic sunroof would not open. I thought it could be repaired but service tech told me that the whole roof would have to be replaced. I feel like these cars are too expensive for…

  Takata recall-i took my vehicle into park place mercedes of arlington in dallas, tx to get a diagnostic on why my panoramic sunroof would not open. I thought it could be repaired but service tech told me that the whole roof would have to be replaced. I feel like these cars are too expensive for parts not to be able to be repaired and have to be replaced. the shade goes back and forth, just the glass won't open, I don't understand why the whole roof has to be replaced. it sounds like an internal defect and I don't feel like I should have to pay for a whole new roof because of one part of it won't open up. mercedes needs to look into a recall for this situation on panoramic roofs.

• Sep 23, 2016CA76,000 mi
  Power train
  TL* the contact owns a 2007 mercedes-benz S550. While driving approximately 1 to 6 mph, the transmission gears made a thumping sound without warning. The issue recurred numerous times. The dealer diagnosed that the transmission had to be replaced. The vehicle was taken to a transmission specialist…

  TL* the contact owns a 2007 mercedes-benz S550. While driving approximately 1 to 6 mph, the transmission gears made a thumping sound without warning. The issue recurred numerous times. The dealer diagnosed that the transmission had to be replaced. The vehicle was taken to a transmission specialist where it was diagnosed that the valve body needed to be replaced. The manufacturer was notified. The vehicle was not repaired. The approximate failure mileage was 76,000.

• Aug 22, 2016IL69,000 mi
  Structure › Body

  TL* the contact owns a 2007 mercedes-benz S550. The contact stated that the top of the vehicle that was connected to the windshield shattered. The vehicle was taken to an independent mechanic who stated that this was a safety issue and advised the contact to file a complaint. The manufacturer was notified of the failure. The vin was not available. The failure mileage was approximately 69,000.

• Jan 7, 2016CA90,000 mi
  Electrical system · Unknown or other
  Was driving and car just makes a jolt while shifting gear than I can't accelerate and it gets stuck in first gear rpm starts going up if I try to accelerate than I'll have to turn engine off which IS inconvenient when your in traffic than restart it and it'll be normal but it happens every other…

  Was driving and car just makes a jolt while shifting gear than I can't accelerate and it gets stuck in first gear rpm starts going up if I try to accelerate than I'll have to turn engine off which IS inconvenient when your in traffic than restart it and it'll be normal but it happens every other day. Now the car IS stuck on a gear and won't change gears completely parked it over night and still doesn't change gears when I start car and try to put it in drive it makes a hard jolt and doesn't accelerate past 30 mph. Been happening for 2 years now...

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.

• 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.
• 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.
• 11008323Complaint Headlamps fogged or droplets forming. Cause Due to its outlet openings, the headlamp is an "open system". This means that acidic gases, moisture, dirt and exhaust gases can penetrate into the headlamp. This can lead to the formation of condensation on the lens of the headlamp. The headlamps comply with all applicable US standards and regulations. Remedy Check housing cover of lamp unit for natural fogging or condensation as per LI82.10-P-078301. If a reduction in the degree of fogging is visible, the desiccant packs can be used once the condensation has completely evaporated. Note: Order service covers and desiccant packs based on the validity description. 1. Remove headlamps. 2. Remove all grommets from outlet openings. 3. Seal vent openings with sealing profile. Important: All openings must be sealed carefully for the pressure compensation diaphragm to work properly! 4. Remove existing service cover. 5. Place desiccant packs into the new service covers and bolt down (Picture_01). 6. Glue the new diaphragm onto the intended surface at the service cover (Picture_02). Note: The bonding surface must be clean and dry. 7. Attach service cover with desiccant pack at headlamp. 8. Install headlamp. To ensure that the desiccant pack (absorption) acts effectively, the headlamp has to be air-sealed. Observe or check the following points for this: 1. Seals at the central connector must all be present and correctly fitted (Picture_03). 2. The new transparent diaphragm must be correctly bonded (Picture_04). 3. Check headlamp housing for any external damage.
• 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.
• 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).
• 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!
• 10205225Headlamps fogged.
• 10202531Touch pad: Search lighting does not dim or does not turn on.
• 10186141NTG5.5: Incorrect time shown on instrument cluster, COMAND display, and analog clock
• 10181124Harsh engagement when changing gear range from P to D or R
• 10181123Harsh engagement when changing gear range from P to D
• 101766615 to 4 coasting downshift - shift quality concern with cold trans- mission oil on MODEL 217 or 222 in combination with ENGI- NE 278 and TRANSMISSION 722.9 without code 835/498
• 10167572If it is necessary to replace an HV battery, the return will only be accepted with the filled-out ?Analysis Sheet for Transportability of High-Voltage Batteries Form? accompanied by: , the removed part, the quick test printout, the BMS control unit log printout, the repair documentation and with all required documentation listed in Section E of the Form.
• 10167554Engine diagnosis warning lamp activated. Fault code P045600 "Very fine leak" or P044200 "Fine leak" stored in engine control unit.
• 10167006Engine diagnosis warning lamp active. Fault code 20BE1B and/or 20BD1B (The heating element of the AdBlue tank has a malfunction) is logged in the Blue-Tec control unit.
• 10166991Creaking noises from the area of the air suspension strut on the front axle when driving over bumps with the steering turned. Topic only reported from outer wheel until now.
• 10166978Engine diagnosis warning lamp lights up - Fault code entry (FC) 14A600 or 14A700
• 10166976Message in instrument cluster "DISTRONIC PLUSCurrently Unavailable - See Owner's Manual"
• 10166975This Customer 1 Action has been initiated because certain mbrace subscribers were recently contacted by mbrace informing them that they need to have an i-button call performed to ensure their mbrace device has registered with the Verizon Telematics systems. If the i-button call failed or if the customer was unable to perform the i-button call, the mbrace agent instructed the customer to make an appointment with their dealer to have the issue corrected and/or i-button call performed. The vehicles impacted range from model year 2002 to 2014.
• 10166107Seat belt height adjustment nonfunctional
• 10166106Grinding noises can occur in the backrest on active multicontour seats with the backrest under load and the seat ventilation switched on
• 10166102No inflation of one or more air cushions on the massage/multicontour/dynamic seat modules (driver, front passenger and rear) Bubble formation in one or more seats with massage/multicontour/dynamic seat modules (driver, front passenger and rear)
• 10166100Dynamic seat (DS) pneumatic pump / multicontour seat pneumatic pump makes noises.
• 10166099Pneumatic comfort systems with insufficient performance, entirely inoperative or leaky.
• 10166098Multicontour system fails during air release procedure. The system becomes operational again after an ignition change. Fault code 9E8900 is stored.
• 10166094Noises from lock of valuables/stowage compartment or from gap cover between seat and center tunnel.
• 10166086Squeaking/creaking noises from area of seat adjuster
• 10166079Creaking noises can occur when the side bolster bladders are inflated and deflated
• 10165854The trunk lid sometimes does not open completely and does not close (completely). This complaint is accompanied by the following symptoms: - Illumination of the trunk lid control button (S62/26) fails. - The ACTUAL value* of the trunk lid lock main catch switch (A85/5s1) indicates "closed" although the trunk lid is open. - Knocking against the trunk lid lock (A85/5) causes the light of the trunk lid control button (S62/26) to flicker and the ACTUAL value* of the trunk lid lock main catch switch (A85/5s1) to jump back and forth between the values "open" and closed". * The ACTUAL value of the trunk lid lock main catch switch (A85/5s1) can be found under the following path in Xentry Diagnostics: Xentry Diagnostics => Control unit => SAM-H (N10/8) => ACTUAL values => Trunk lid => Trunk lid lock main catch switch
• 10165853When on rough roads and with side loads applied to the center console (leg support) cracking noise may occur in the transition between the instrument panel and the center console.
• 10135628iPhone mobile phone: Various complaints after software update to iOS8
• 10135604Vehicle cannot be opened via Keyless-Go and radio remote control
• 10044222Mercedes benz: front or rear seat belt does not roll up correctly. Dirt deposits on the seat belt guide due to soiled seat belt. Also included models 169, f cell, 246, and 231. No model years given.
• 10044181Xentry: rattling/thumping noises from the area of the steering on rough roads or when driving over road undulations. No model years given. Also included models 168 and 172.
• 10037986Mercedes benz- when doing a software update the update fails and the tuner goes to boot mode.
• 10037918Mercedes-benz: esp malfunction or bas malfunction light shows up in the instrument panel because of a wheel speed sensor problem. Updated 2/15/13.
• 10037408Mercedes-benz: shock absorber procedure.
• 10036741Mercedes: mounting bolt of hv connection to hv battery broken during installation. The mounting bolt shears off when retightened at the hv connection to the hv battery. Excessive stress on mounting bolt due to failure to comply with tightening torque of 5NM. Models 221.095/221.195(hybrid). No model years listed.

Every Mercedes Benz S550 model year

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