2006 Mercedes-Benz R350

Recalls

2 recalls name the 2006 Mercedes-Benz R350. Newest first.

• Service brakes, hydraulic › Power assist › Vacuum

  Apr 26, 2024NHTSA 24V29800015,604 vehicles

  Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2006-2012 ML, GL, and R-Class vehicles. Please refer to MBUSA's recall report for specific vehicle model details. Moisture may accumulate and cause corrosion in the brake booster housing unit, which can result in reduced brake performance or brake failure.

  Risk and remedy

  Risk

  Reduced brake performance or brake failure can increase the risk of a crash.

  Remedy

  Owners are advised not to drive their vehicles until the remedy has been performed. Dealers will remove the rubber sleeve, inspect the brake booster, and as necessary, replace the brake booster. All repairs will be performed free of charge. Owner notification letters were mailed on May 24, 2024. Owners may contact MBUSA customer service at 1-800-367-6372. MMUSA's number for this recall is 2024050001/2. This recall is an expansion of previous recall number 22V-315.

  Full recall details →

• Service brakes, hydraulic › Power assist › Vacuum

  May 9, 2022NHTSA 22V315000350,294 vehicles

  Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2006-2012 ML-Class, GL-Class, and R-Class vehicles. Please refer to MBUSA's recall report for specific vehicle model details. Moisture may accumulate and cause corrosion in the brake booster housing unit, which can result in reduced brake performance or brake failure.

  Risk and remedy

  Risk

  Reduced brake performance or brake failure can increase the risk of a crash.

  Remedy

  Owners are advised not to drive their vehicles until the remedy has been performed. Dealers will remove the rubber sleeve, inspect the brake booster, and as necessary, replace the brake booster. All repairs will be performed free of charge. Owner notification letters were mailed June 30, 2022. Owners may contact MBUSA customer service at 1-800-367-6372. MBUSA's numbers for this recall are 2022050014, 2022050015 2022090006, & 2022090007.

  Full recall details →

Owner complaints

What owners report most

1. Suspension26
2. Engine and engine cooling17
3. Engine17
4. Electrical system14
5. Power train13
6. Seats9
7. Exterior lighting7
8. Steering5
9. Unknown or other4
10. Air bags3

Latest complaints

• Sep 6, 2022NV
  Service brakes, hydraulic
  The contact owns a 2006 Mercedes-Benz R350. The contact received notification of NHTSA Campaign Number: 22V315000 (Service Brakes, Hydraulic) however, the part to do the recall repair was not yet available. The dealer was made aware of the issue. The contact stated that the manufacturer had…

  The contact owns a 2006 Mercedes-Benz R350. The contact received notification of NHTSA Campaign Number: 22V315000 (Service Brakes, Hydraulic) however, the part to do the recall repair was not yet available. The dealer was made aware of the issue. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The contact had not experienced a failure. Parts distribution disconnect

• Jun 20, 2022MD
  Engine
  My car has stalled several times, either when I am driving, or when I stop at a traffic light. Rough idling and/or running when stopped at a red light or driving at speeds that wouldn’t normally be an issue. Engine stalling or misfiring, and car sometimes have trouble starting up. Loud rattling or…

  My car has stalled several times, either when I am driving, or when I stop at a traffic light. Rough idling and/or running when stopped at a red light or driving at speeds that wouldn’t normally be an issue. Engine stalling or misfiring, and car sometimes have trouble starting up. Loud rattling or vibrating noises from the engine. The check engine light is turned on. I took it to Mercedes Benz Dealership in Brooklyn, NY and was told it is a Balance Shaft problem, and they told me it could cost me about $9,000.00. Further research informs me that the problem should not be ignored, nor repair put off. Also, that failure of the balance shaft leaves the inner components of the engine unsecured and therefore will ultimately result in damage to the engine if left unchecked. Also, that driving at high speeds for long periods can agitate the problem even further due to the constant vibrations without a proper securing mechanism. As a result, I parked my car for several months, since I cannot afford the amount they quoted. In essence, I cannot even enjoy the car I bought.

• Jul 16, 2020CA98,000 mi
  Engine · Unknown or other

  As I was driving down the highway I pressed on gas pedal and vehicle made a very loud chain whine noise and it cut off in the middle of highway and never started back up.

• Dec 29, 2019CA204,000 mi
  Air bags · Electronic stability control (esc) · Steering
  My ABS my eesp my brake light and check engine light mine anyways the whole cluster IS going crazy it's hard to shift down when I'm coming to a stop not all the time but just sometimes so I got a mind of its own my speedometer goes up and down it says check my tire pressure when it's good my srs…

  My ABS my eesp my brake light and check engine light mine anyways the whole cluster IS going crazy it's hard to shift down when I'm coming to a stop not all the time but just sometimes so I got a mind of its own my speedometer goes up and down it says check my tire pressure when it's good my srs light comes on my brakes lights comes on it says dionostic rig test, ABS light says dionostic rig test, especially light says dionostic rig test. Brake light flashes on and off and a continuous beebing. It also says do not change gears drive to work shop.$ your paper will not allow me to check other boxes that I'm having problem wit

• May 14, 2019PA146,000 miFire
  Seats
  May 13, 2019, my wife started the car and drove for less than a mile when her dress started smoking from the driver seat that was alight. She stopped the car and removed our 11 month old baby from the backseat and called me. She has a video of the incident. I checked on mercedes USA site and found…

  May 13, 2019, my wife started the car and drove for less than a mile when her dress started smoking from the driver seat that was alight. She stopped the car and removed our 11 month old baby from the backseat and called me. She has a video of the incident. I checked on mercedes USA site and found out that there was a class action law suite on this issue. We were not notified by either mb or the administrator of the case. This could have turned out deadly as the battery IS under the passenger seat and the fuel lines. I turned the car on and again , the seat started to smoke. It IS now parked in our driveway as my wife and I are scared of putting our kids in it. I contacted mb USA and they directed me to the administrator of the law suite. This can create dangerous or even deadly situations if my was on a highway and could not stop or fie escalates rapidly with our child in the back seat.

• Feb 15, 2019FL120,000 mi
  Service brakes

  Mercedes 2006 when I brake the car will keep going. Sudden acceleration. This has happen twice and I have not owned the car for a year. I could kill someone. Took it to dealer and three different shops and no one knows what I'm talking about help

• Aug 27, 2018AZ108,951 mi
  Wheels

  Complaint IS directed to court@groveautocenter.com in forest grove, oregon. at time of purchase, tires were totally worn and dealer agreed to new tire replacement. subsequent event revealed replacement tires were not new and had previously been improperly repaired. in addition, load factor was below minimum manufacturers rating and unsafe. dealer refused to reimburse cost of new and correct replacement tires.

• Apr 7, 2018MD
  Engine
  Takata recall. I purchased my 2006 mercedes R350 in 2016 with over 100K miles on it. With the engine light already on. I used a scanner tool for an accurate diagnosis. As it stated two issues. A crank shaft sensor/ cam shaft sensor was needed. So I decided against my better judgement to finalize…

  Takata recall. I purchased my 2006 mercedes R350 in 2016 with over 100K miles on it. With the engine light already on. I used a scanner tool for an accurate diagnosis. As it stated two issues. A crank shaft sensor/ cam shaft sensor was needed. So I decided against my better judgement to finalize the purchase anyway. Needless to say, after I changed the sensors the problem still remains. After doing a lot of research and spent unnecessary money, it was brought to my attention that the problem IS in fact a faulty balance shaft inside of the engine. Due to a manufacturing default. That was covered my mercedes in a recall at one point before I had purchased the vehicle. For something as serious as a defected part in a motor should not be limited to when you purchase the vehicle, but whenever it IS brought to their attention it should be repaired without hesitation since this IS a manufacturing default and not something that was done by any previous owners. I would like to know what if anything can be done to help me resolve this issue at hand. Thanks in advance.

• Apr 2, 2018OH117,000 mi
  Air bags
  TL* the contact owns a 2006 mercedes-benz R350. While sitting in the vehicle and waiting to change a flat tire, the passenger and driver side air bags deployed inadvertently. The vehicle had not been involved in a crash. There were no injuries. The contact stated that the air bag warning indicator…

  TL* the contact owns a 2006 mercedes-benz R350. While sitting in the vehicle and waiting to change a flat tire, the passenger and driver side air bags deployed inadvertently. The vehicle had not been involved in a crash. There were no injuries. The contact stated that the air bag warning indicator was illuminated prior to the failure. The dealer and manufacturer were not notified of the failure. The approximate failure mileage was 117,000.

• Dec 12, 2017CA82,000 mi
  Suspension

  Yesterday, while parked, I noticed the car IS leaning towards left side. Mechanic checked and found the air spring bag was leaking. Also, the strut on right got shot. Many owners have the same complaint. I'm scared to travel with my kids and grand kids in the car. These cars must be recalled for suspension problems. http://www.arfc.org/complaints/2006/mercedes/r350/suspension/problem.aspx

• Jun 15, 2017NY176,960 miFire
  Seats
  The heated seats were turned on the driver seat while waiting in line at a fast food drive thru on june 15, 2017 around 1:00am. I pulled of after getting my food. Then while I was leaving the parking lot I started to feel really warm on my back and side, hotter than normal. I started to smell…

  The heated seats were turned on the driver seat while waiting in line at a fast food drive thru on june 15, 2017 around 1:00am. I pulled of after getting my food. Then while I was leaving the parking lot I started to feel really warm on my back and side, hotter than normal. I started to smell smoke! I pulled over quickly and got out of the car and I realized my clothing was smoking and the back of my seat was on fire. The fire went out and my jacket and t shirt had burns and ashes on them and my driver seat had large hole in it.

• Feb 24, 2017NY99,000 mi
  Engine
  Balance shaft gear defective apparently mercedes has been aware of this problem, class action suits have been filed- no recall yet. I plan to call mercedes dealer tomorrow- do not anticipate any help on their part - if that's the case will try to join class action suit as this IS a known and very…

  Balance shaft gear defective apparently mercedes has been aware of this problem, class action suits have been filed- no recall yet. I plan to call mercedes dealer tomorrow- do not anticipate any help on their part - if that's the case will try to join class action suit as this IS a known and very costly -(thousands of dollars) problem for numerous mb vehicles- many classes from 2007 -2011. Mercedes benz was apparently aware of this defect when I purchased my vehicle (used) from local mb dealer here in ny 2009 as a pre owned certified vehicle, why was I not made aware of this issue that mercedes knowingly knew and come to find out a class action lawsuit was filed. The nhtsa need s to look into this many complaints have been filed, mercedes service techs were made aware of this issue but they were not instructed to let customers be known of this when cars were brought in for service. Please look into this and recalls must be preformed

• Feb 5, 2017CA128,000 mi
  Electrical system · Power train · Vehicle speed control

  Car goes into limp mode cant drive faster than 20mph on freeway very dangerous. Have to pull over turn off engine and restart car to reset. Car just randomly shut off all electronics died on street. Towed car to dealership says needs new valve body of transmission. Researched online very common problem. Defect in manufacturing and parts.

• Aug 3, 2016TX50,000 mi
  Suspension
  TL* the contact owns a 2006 mercedes-benz R350. The contact stated that the suspension failed on the front passenger side of the vehicle while parked. The vehicle was taken to a dealer where it was diagnosed that the compressor, relay, fuse link, air suspension, and core return needed to be…

  TL* the contact owns a 2006 mercedes-benz R350. The contact stated that the suspension failed on the front passenger side of the vehicle while parked. The vehicle was taken to a dealer where it was diagnosed that the compressor, relay, fuse link, air suspension, and core return needed to be replaced. The vehicle was repaired, but the failure recurred two more times. The manufacturer was made aware of the failure. The failure mileage was approximately 50,000.

• Jul 19, 2016PA100,000 mi
  Engine
  This IS a well documented issue but mercedes benz refuses to acknowledge the balance shaft as a defect and road safety hazard. unfortunately it's going to take someone's engine falling a part at high speed causing an accident before someone will do something which IS terrible. mercedes-benz…

  This IS a well documented issue but mercedes benz refuses to acknowledge the balance shaft as a defect and road safety hazard. unfortunately it's going to take someone's engine falling a part at high speed causing an accident before someone will do something which IS terrible. mercedes-benz balance shaft problems and how to check your car. balance shaft mercedes V6 and V8 problems mercedes-benz V6 and V8 engines had timing chain problems caused by balance shaft and idler gear failures. Mercedes produced certain models with defective gears in their balance shafts (M272 engines) or with defective idle gears ( M273 engines). These faulty gears wear out prematurely, excessively, and without warning, causing the vehicle to malfunction, the 'check engine light' to remain illuminated, and the vehicle to misfire or stop driving.

• Jul 2, 2016GA110,000 mi
  Suspension

  Everyday I get a red signal alerting me to stop driving, car too low. it usually occurs when initially turning on the car or at the beginning of the drive. the rear of the car IS visibly low and when driving it IS uneven and bumpy. I have seen other R350 owners with same complaint and repeat costs to fix ~1200.00 each side. no suspension recalls on an apparent defect in manufacturing?

• Jun 21, 2016FL110,000 mi
  Suspension

  TL* the contact owns a 2006 mercedes-benz R350. While driving at various speeds, the vehicle leaned to the driver's side and caused the passenger side to become elevated. While making a left turn, the vehicle almost flipped over. The failure recurred continuously. The vehicle was not diagnosed nor repaired. The manufacturer was not made aware of the failure. The failure mileage was approximately 110,000.

• May 20, 2016IN70,000 mi
  Suspension
  The 2006 mercedes benz R350 with the airmatic suspension has multiple problems that seem to never end. My car has only 70K miles on it. The suspension has been fixed twice by an authorized mercedes benz shop. While looking up some information on various websites and forums I noticed I am not the…

  The 2006 mercedes benz R350 with the airmatic suspension has multiple problems that seem to never end. My car has only 70K miles on it. The suspension has been fixed twice by an authorized mercedes benz shop. While looking up some information on various websites and forums I noticed I am not the only owner with this problem. While driving down the highway a light came on the dash screen stating vehicle too low to driveto shop. When the suspension goes out the vehicle frame IS approximately 2 inches from the ground. The stiffened ride makes it difficult to maneuver the vehicle. Mercedes benz stated you can't get a traditional coil spring conversion in the united states. The suspension problems with the R350 are also very costly ($3600) every time this has to be fixed. My car IS currently in storage due to not being able to afford a third time to the shop. Please consider an investigation into the suspension of the mercedes benz R350 airmatic thank you for your time. *tr

• Dec 30, 2015GA130,000 miFire1 injury
  Electrical system · Seats
  TL* the contact owns a 2006 mercedes benz R350. The contact stated that the front drivers side seat back and cushion heater was activated, while driving approximately 25 mph. a burning odor emitted inside of the vehicle. The vehicle was maneuvered to the side of the road. The seat heater was…

  TL* the contact owns a 2006 mercedes benz R350. The contact stated that the front drivers side seat back and cushion heater was activated, while driving approximately 25 mph. a burning odor emitted inside of the vehicle. The vehicle was maneuvered to the side of the road. The seat heater was immediately deactivated. The contact sustained minor burns to the back area and medical attention was not required. There were no flames visible. A fire report was not filed. The vehicle was taken to the dealer where the seat and heating element were both replaced. The manufacturer was not notified of the failure. The approximate failure mileage was 130,000. The vin was unavailable.

• Dec 23, 2015WA88,000 mi
  Engine
  Vehicle cranks but will not start, dealer first replaced fuel pump ($1500),then when came to pickup vehicle would not start at dealer, replaced starter(no charge), drove for 2 weeks issue came back, took to dealer , they kept it for 20 days and said some sort of control module, but who knows. Its…

  Vehicle cranks but will not start, dealer first replaced fuel pump ($1500),then when came to pickup vehicle would not start at dealer, replaced starter(no charge), drove for 2 weeks issue came back, took to dealer , they kept it for 20 days and said some sort of control module, but who knows. Its been 15 months and car just stopped smack in middle of freeway at 60 miles per hour and would not start. Currently at dealer.

• Dec 23, 2015WA80,000 mi
  Electrical system
  Rear light modules (tail, reverse, brake, signal) keeps on failing. Dealer quotes initially $250 to fix/rewire but then goes up to $950 to replace ecu. This IS frustrating as this IS driving hazard, owners are left without much choice. I have seen multiple complaints of the same issue so mb should…

  Rear light modules (tail, reverse, brake, signal) keeps on failing. Dealer quotes initially $250 to fix/rewire but then goes up to $950 to replace ecu. This IS frustrating as this IS driving hazard, owners are left without much choice. I have seen multiple complaints of the same issue so mb should already know that this problem exists and be honest upfront about it. I hope nobody gets hurt if the lights fail while driving this model/brand.

• Dec 23, 2015WA88,000 miFire
  Electrical system · Engine · Fuel/propulsion system

  Wiring from engine harness to fuel pump burnt on freeway , engine stalled and shut down, could not start back up in middle of I5 freeway. Repairs are amounting to $4000. Could have burnt entire vehicle and after reading numerous complaints with exact same problem something needs to be done.

• Nov 20, 2015IL126,000 miFire
  Electrical system · Seats
  TL* the contact owns a 2006 mercedes benz R350. When the contact parked the vehicle, she noticed that the driver seat became hot and burned through, creating a hole on the seat. There was no warning indicator illuminated and the contact was not injured. The manufacturer was made aware of the…

  TL* the contact owns a 2006 mercedes benz R350. When the contact parked the vehicle, she noticed that the driver seat became hot and burned through, creating a hole on the seat. There was no warning indicator illuminated and the contact was not injured. The manufacturer was made aware of the failure and referred the contact to a local dealer. The dealer was unable to diagnose the failure. The vehicle was not repaired. The failure mileage was 126,000.

• Aug 6, 2015MA130,000 mi
  Engine · Steering
  TL* the contact owns a 2006 mercedes benz R350. the contact stated that while reversing, the vehicle made an abnormal noise as the steering wheel seized and smoke started to emit from under the hood. The contact turned the engine off but the vehicle failed to restart. the vehicle was towed to an…

  TL* the contact owns a 2006 mercedes benz R350. the contact stated that while reversing, the vehicle made an abnormal noise as the steering wheel seized and smoke started to emit from under the hood. The contact turned the engine off but the vehicle failed to restart. the vehicle was towed to an independent mechanic. The technician diagnosed that the power steering pump, serpentine belt and idler pulley needed to be replaced. the vehicle was repaired. however, the contact stated that the check engine light stayed on. the manufacturer was made aware of the failure. The approximate failure mileage was 130,000.

• Jun 24, 2015GA44,000 mi
  Power train · Steering
  TL* the contact owns a 2006 mercedes benz R350. While driving approximately 15 mph, the steering wheel seized without warning. The vehicle was taken to a dealer where it was diagnosed that the steering pump needed to be replaced. The vehicle was repaired however, the failure recurred. In addition…

  TL* the contact owns a 2006 mercedes benz R350. While driving approximately 15 mph, the steering wheel seized without warning. The vehicle was taken to a dealer where it was diagnosed that the steering pump needed to be replaced. The vehicle was repaired however, the failure recurred. In addition, the contact stated that when the vehicle was serviced, the technician stated that the transmission valve body needed to be replaced. The vehicle was repaired. The failure recurred. The manufacturer was notified of the failure. The 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.

• 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
• 11007790Complaint Headlamps fogged or droplets forming. Cause Due to the housing cover with pressure compensation diaphragm, the headlamps are a "closed system". This means that the headlamps are protected against acid gases, dirt and exhaust gas. However, moisture can still enter from two sources. Through absorption and desorption (the commonest cause) or through permeation. Moisture is either absorbed by the plastic material and, when the light source is switched on, it is released from the plastic by desorption, or the moisture penetrates through the plastic materials of the headlamp from outside (permeation). 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 headlamps 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 existing service cover with diaphragm (Picture_01 (1)). 2. Insert desiccant packs (Picture_01 (2)) into new service covers with diaphragm and seal with protective grille and bolt down (Picture_01 (3)). Note: One desiccant pack is required for each small service cover, and two desiccant packs are required for each large service cover. 3. Stick the supplied diaphragm onto the new service cover and attach at the headlamp. Note: The bonding surface must be clean and dry. 4. If the headlamp housing has an additional 2nd diaphragm, this must be covered over with masking tape. Note: The bonding surface must be clean and dry. 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_02). 2. The new transparent diaphragm must be correctly bonded (Picture_03). 3. Check headlamp housing for any external damage.
• 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!
• 10235978Recall Campaign announcement for Takata driver airbags.
• 10205233Mobile phone cotacts are not transferred completely.
• 10205147Ticking or pulsing noise from high-pressure pump and/or fuel injectors.
• 10167554Engine diagnosis warning lamp activated. Fault code P045600 "Very fine leak" or P044200 "Fine leak" stored in engine control unit.
• 10166980Traces of oil in area of oil cooler (inner V) on engine 642
• 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.
• 10166099Pneumatic comfort systems with insufficient performance, entirely inoperative or leaky.
• 10166080The pneumatic 4-way lumbar support fails. Lumbar support pockets cannot be filled up or they drain.
• 10158329Oil in engine wiring harness
• 10135653Procedure in case of slight oil traces on TRANSMISSION 722.9
• 10135649Procedure in case of slight oil traces on TRANSMISSION 722.9
• 10135632Fault in particulate sensor
• 10135628iPhone mobile phone: Various complaints after software update to iOS8
• 10052151Xentry (mercedes): rattling noise coming from the area of the steering column tube system, when driving over rough road and when accelerating or braking, there would be cracking noises. Models 164, 251. No model years listed.
• 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.
• 10044200Xentry: mercedes benz: grunting/creaking sound from the area of the front axle when braking, driving over surface undulations, negotiating tight corners, or while maneuvering. Model years unknown.
• 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.
• 10037653Mercedes-benz: there are electrical production quality issues that cause the air bag warning light to illuminate.
• 10037408Mercedes-benz: shock absorber procedure.
• 10033074Xentry: outside door handle no longer returns to end position. Due to a bent pin in the dynamic balancer, the support spring of the bearing bracket can slide out of place or become unhooked. Models 164, 251, 166, 204, 212. No model years listed. Updated 2/1/12. Updated 10/3/12. Updated 10/21/13.
• 10033071Mercedes benz: adjusting wiper arms. If you receive reports on certain vehicles of wipers chattering/noisy, proceed as follows: inspect wiper blades/inserts for wear and replace; thoroughly clean windshield; verify use of correct washer fluid; check washer nozzle adjustment; check wiper arm angle adjustment; and record values per applicable model; if required, adjust wiper arm angle. Models 164/251. No model years listed.
• 10033070Xentry (mercedes): engine warning lamp IS currently on or was on and a delay fault of the camshaft adjust to current or stored in the engine control unit. Models 171, 203, 209, 211, 219, 221, 216, 230, 164, 251, and 403. No model years listed.
• 10032727Mercedes: following fault codes are entered in the control unit and displayed-fc5320 drain valve:open circuit or insufficient valve current in models series 211, 219; fc5260 drain valve open circuit or insufficient valve current in model 221; fc5250 drain open circuit or insufficient valve current in model series 251, 164. Defective connecting cables to drain valve at airmatic compressor. This results in the setting of the fault codes. No model years listed.
• 10032707Mercedes: ensuring unobstructed movement for the fuel level sensor. When installing the left or right fuel level sensor, it IS essential for it to have unrestricted, unobstructed movement.
• 10032568Mercedes benz service campaign: see document search button for owner letter. Software calibration number (scn) coding; engine control module. The vehicles fuel tank leak diagnosis system may have been inadvertently deactivated during a visit to the workshop. This may cause the affected vehicles to fail to meet the statutory requirements for inspection and or maintenance (emissions inspection).
• 10030929Mercedes: corrosion protection coatings for brake components and hardware may be damaged and or stripped away if highly concentrated acid based cleaners are used. Once the corrosion protection IS damaged or removed the brake components and or hardware can begin to corrode. Include all models and model years.
• 10028668Mercedes: active head restraints activate for no reason. This may be caused by damage to the seat wiring harness causing a short circuit. Models 164 and 251. Model years unknown. Updated 9/18/09.
• 10028646Mercedes: groaning or dull, heavy cracking noises from steering shaft area. When turning steering wheel or moving off or braking. This may be emanating from the bearing and housing of upper steering shaft (firewall pivot point) or steering coupling (lower steering shaft). Models 164 and 251. Model years unknown.
• 10028645Mercedes: chrome plating peeling on decorative caps on the steering wheel spokes, this IS due to less than optimal adhesion between chrome plating and base material. Models 164 and 251. Model years unknown.
• 10028026Mercedes: replace v belt upper guide pulley. The v belt upper guide pulley optimized for noise reduction IS available. The dealer will replace upper guide pulley at the next workshop visit.

Every Mercedes-Benz R350 model year

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