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ProblemsByVin Index / 2006-MERCEDES-BENZ-R-CLASS / COMPLAINTS
Full complaint record · NHTSA

2006 Mercedes-Benz R-Class owner complaints

128 complaints filed with NHTSA on this vehicle , including 4 reporting a crash, fire, injury, or fatality. Showing the 300 most recent — grouped by category for scanning.

electrical 8 complaints shown

17 total in this category · severe · avg repair $850 · see electrical cluster analysis →
12/30/2015 130,000 mi Fire ODI #10817006.0

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.

12/24/2010 65,000 mi ODI #10372335.0

On my 2006 Mercedes benz r350, the rear brakelights and taillights regularly fail to eliminate. The lights are very inconsistent and when they fail a back-up substitute light comes on. A message appears on the dash indicating that the substitute lights are on. After changing the bulbs numerous times, I was told by a mechanic at Mercedes that the contact may be worn out. *tr

12/23/2015 88,000 mi Fire ODI #10811951.0

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.

12/23/2015 80,000 mi ODI #10811954.0

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.

12/20/2011 ODI #10440585.0

Rear light modules (tail, reverse, brake, signal) keeps on failing. Dealer quotes initially $200 to fix/rewire but then goes up to $800 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. *tr

12/14/2010 33,106 mi ODI #10370541.0

Tl* the contact owns a 2006 Mercedes benz r350. The contact stated that when starting the vehicle, the taillights failed. The exterior light warning light was also illuminated, indicating that the brake lights were nonfunctional. The vehicle was taken to the dealer who repaired the wiring harness at the contacts expense. The manufacturer was contacted who offered no assistance. The failure mileage was 33,106. Updated 02/10/11 *bf updated 02/22/11

12/03/2013 80,000 mi Fire ODI #10554713.0

Tl* the contact owns a 2006 Mercedes-benz r350. The contact discovered that the rear tailgate area was burned. The vehicle was not diagnosed or repaired. The manufacturer was not informed of the problem. The failure mileage was 80,000.

11/20/2015 126,000 mi Fire ODI #10795069.0

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.

suspension 6 complaints shown

31 total in this category · moderate · avg repair $900 · see suspension cluster analysis →
12/24/2014 90,000 mi ODI #10668205.0

I agree that something should be done about the rear suspension defect on the 2006 r-class Mercedes. I also own a 2006 Mercedes benz r350. This vehicle kept leaning to the right side. The automatic suspension on the vehicle was uneven. The red light asked me to stop?car too low. I stopped and it pumped up again. Drove a couple of miles and it did same thing. Took to mb dealer they said it was the suspension this passenger??s side issue of the vehicle being notably higher than the driver??s side of the vehicle. Leaning to one side has occurred twice. The rear air spring suspension has required replacement two times in the last five months (7/1/2013 & 11/28/2013): - both sides in the rear of vehicle have been replaced. - each rear suspension repair has cost me $1200.00 each ti

12/24/2014 95,000 mi ODI #10668207.0

2006 Mercedes r-350 suspension defect I agree that something should be done about the rear suspension defect on the 2006 r-class Mercedes. I also own a 2006 Mercedes benz r350. This vehicle kept leaning to the right side. The automatic suspension on the vehicle was uneven. The red light asked me to stop?car too low. I stopped and it pumped up again. Drove a couple of miles and it did same thing. Took to mb dealer they said it was the suspension this passenger?s side issue of the vehicle being notably higher than the driver?s side of the vehicle. Leaning to one side has occurred twice. The rear air spring suspension has required replacement two times in the last five months (7/1/2013 & 11/28/2013): - both sides in the rear of vehicle have been replaced. - each rear suspens

12/12/2017 82,000 mi ODI #11054254.0

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

12/11/2012 69,000 mi ODI #10488022.0

Tl* the contact owns a 2006 Mercedes benz r350. The contact stated that the frame appeared to be leaning abnormally. The contact also stated that when driving various speeds, she could feel the frame moving around. The vehicle was taken to an independent mechanic for diagnosis and the contact was informed that there was a defect in the suspension. The manufacturer was notified but offered no assistance. The VIN was unavailable. The failure and current mileage was 69,000.

11/26/2012 80,000 mi ODI #10486094.0

Tl* the contact owns a 2006 Mercedes benz r350. The contact stated that when driving approximately 55 MPH or higher, the rear end of the vehicle would lower to the ground. The vehicle was not inspected by a dealer or an independent mechanic. The manufacturer was not contacted. The failure and current mileage were approximately 80,000. The VIN was unavailable.

11/24/2012 103,468 mi ODI #10485921.0

My wife came out to start the vehicle and noticed the car was leaning severely to one side. The driver front and rear was tilted, something I never witnessed before on any vehicle I once owned. I took it to the dealer and they told me it was a sensor that controlled the balance of the vehicle. The sensor was changed and a few days later it started leaning again. I noticed when the vehicle sits it will begin to lean, but once it is driven for 10 miles it begins to balance itself. I have been trying to contact you all about this situation, however to no , so now I will begin taking further procedures to correct this situation, and not have to continue paying for a default that`s inconceivable. *tr

powertrain 2 complaints shown

14 total in this category · severe · avg repair $2,500 · see powertrain cluster analysis →
12/15/2017 112,000 mi ODI #11054938.0

The transmission has a faulty shift solenoid that can only be replaced by a Mercedes benz dealer and therefore is many times more expensive than other repairs. Also this solenoid has a well above average failure rate. My car has 112,000 miles and the transmission began shifting poorly and got stuck in 4th gear. Can became very jerky and once went into park without me selecting park, this happened at a stop light with cars coming up behind me.

11/28/2013 103,000 mi ODI #10554050.0

Transmission goes into limp mode after slowing down on to near zero on an interstate highway. The result is the car will not shift down into lower gear and thus will not accelerate. Car must be turned off and re-started on interstate highway in traffic in order to make the car operate or able to move forward. Needless to say, stopping and re-starting a car on the interstate is an obvious safety issue... Particularly when trapped in the fast lane with no way to cross multiple lanes of traffic to get to the shoulder (because car will not accelerate and cannot merge into 70 MPH traffic to cross). As this is a very common problem that Mercedes has on several platforms that share the 7-g tronic transmission, I would think that Mercedes must acknowledge the problem as there is no warning that I

steering 1 complaint shown

10 total in this category · moderate · avg repair $700 · see steering cluster analysis →
12/29/2019 204,000 mi ODI #11291884.0

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

engine 1 complaint shown

28 total in this category · moderate · avg repair $3,100 · see engine cluster analysis →
12/23/2015 88,000 mi ODI #10811956.0

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.

airbags 1 complaint shown

3 total in this category · severe · avg repair $1,100 · see airbags cluster analysis →
12/01/2016 106,000 mi ODI #10929503.0

Consistent issues with drivers side airbag. Sms light comes on after being repaired sporadically. Multiple repairs documented via bosche and ASE Mercedes benz repair facility. Spoke with hendrick Mercedes benz and they advised that a voluntary recall for the airbag was issued but is no longer honored. I was never informed of the voluntary recall and the factory Mercedes benz dealer is no longer honoring the voluntary recall. I will need to garner the previous repair invoices from the certified Mercedes benz repair shop.

lighting 1 complaint shown

3 total in this category · moderate · avg repair $250 · see lighting cluster analysis →
11/22/2010 46,000 mi ODI #10367058.0

Tl*the contact owns a 2006 Mercedes benz r350. While driving approximately 55 MPH, the contact stated that the brake light would not turn on. There was a warning light that indicated that they did not function. The vehicle was taken to an authorized dealer who stated that the problem was associated with a wiring problem. The vehicle had not been repaired. The failure mileage was 46,000.

Showing 300 of 128 total complaints. The full federal record is available at nhtsa.gov/vehicle/2006/Mercedes-Benz/R-Class#complaints.
Source: National Highway Traffic Safety Administration (NHTSA) owner complaint database. Last synced 2026-06-14. Complaints are owner-submitted and unverified — the existence of a complaint is not proof of a defect, but a pattern of complaints around the same component is a signal worth weighing. Verify any specific filing at nhtsa.gov.
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