Suspension complaints by model year
Mileage when the problem started
What owners report
1. Air suspension bag rt side needed replaced. Car was setting low and leaning to right rear- while this was in for repair had mechanic check recent "check engine " light code came up with very serious and expensive issue: 2.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 central pa on dec. 3, 2012.
Tl* the contact owns a 2008 Mercedes Benz R350. The contact stated that the vehicle was inclining on the passenger side. The vehicle was not diagnosed or repaired. The manufacturer was notified of the failure. The approximate failure mileage was 97,513.
Replace engine, transmission, 3 suspensions is 3 years-twice on the right side Mercedes and intercar claimed that right rear air spring had a leak left rear shock leaking and claimed normal wear and tear at 71725 miles-so was the pages and pages of the link below at 71000 miles, power door locks stopped working, power drivers mirror stopped working, safety lock for back windows stop working, burns 2 quarts of oil a month, sunroof leaks, and doesn't always close all the way, ABS speed sensors defective, rear main radial seal in transmission defective, replace defective engine thermostat, replaced the batteries due to corrosion (under the seat), faulty signals for tail lights and parking tail lamps (electrical), air conditioning ambient sensor defective, replace defective radio antenna. This car has major design flaws, and has been discontinued by mb. …
Mercedes R350 4matic year 2007, current 80000 miles. 1/ first issue around 20000 miles, ac is not working when used for long hours of driving. Need to stop the vehicle and turn off eng and restart eng then turn ac back on to make it work again. Happend till now 80000 miles. Noise come from all 4 doors due to the gap seal of the all door vibration while driving. 2/ around 40000 miles, power sw window on driver side come off at all 4 buttons just like a pcs knock off of toy. 3/ auto power trunk is not working, belt tenssion pulley broke at 50000 miles. 4/ front brakepad replace every 30000 miles + front rotor replace at 60000 miles, rearpad at 40000 miles. 5/ 70000 miles rear left air shock leak + 78000 miles rear right air shock leak + power sterring leak due to seal ring broke + 77000 miles oil cam plug broke then oil leaking. …
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. …
We have had a continuous problem regarding rear suspension, right side started first, the rear would drop down but yet the left side would be up. This created a horrific unsteady drive. We had a suspension air bag replaced. Now the left side is doing it. Car can not be driven. From all that I have read and from dealers, this is a ongoing problem with Mercedes. Why has Mercedes not issued a recall regarding this problem? This should not happen and definitely not at a vehicle that has low miles. Now this issue is also causing uneven wear on tires, 2years later we are still dealing with this issue.
Frequently asked questions
Which Mercedes-Benz R350 years have suspension problems?
By NHTSA complaints, the 2006 (26), 2007 (16) and 2008 (12) model years. Suspension complaints make up 26% of all complaints for the 2006.
Is there a recall for Mercedes-Benz R350 suspension problems?
No. NHTSA lists no suspension recall for any Mercedes-Benz R350 model year. A widespread problem may still be covered by an extended warranty or a manufacturer service bulletin, so ask a dealer.
At what mileage do Mercedes-Benz R350 suspension problems start?
Across all years, half of the complaints with a recorded mileage happened before about 81,000 miles; 8% happened before 50,000 miles.
Source: U.S. National Highway Traffic Safety Administration (NHTSA) — owner complaints through October 20, 2026, recalls and defect investigations; fuel economy from the EPA. Complaints are unverified reports and are not proof of a defect. How we rate model years.