Most common 2007 Mercedes-Benz R350 problems
Share of the 47 complaints; one complaint can involve more than one system. "~" is the median mileage when the problem started.
Mercedes-Benz R350 complaints by model year
Best R350 years: 2012, 2010, 2009. Years to avoid: 2006, 2007. Compare all years →
2007 Mercedes-Benz R350 recalls (2)
Service brakes, hydraulic › Power assist › Vacuum
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.
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.
Service brakes, hydraulic › Power assist › Vacuum
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.
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.
What 2007 Mercedes-Benz R350 owners say
Suspension
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. …
Engine & cooling
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. …
Seats
Tl* the contact owns a 2007 Mercedes-Benz R350. While operating the vehicle, a burning odor was present inside the vehicle. The driver later noticed that the driver side lumbar area of the front driver seat became extremely hot and burned through the leather seat and the clothing worn by the driver. There were no injuries. The cause of the failure was not diagnosed. The vehicle was not repaired. The manufacturer was not notified of the failure. The failure mileage was 104,000.
Got in my car and turned on my seat warmers and proceeded to drive. After driving for 5 minutes I noticed a smell, though it was the fumes from the car in front of me. I kept driving and then I felt some discomfort on my lower left upper hip area. Felt like something was biting me. By this time I was a major highway and kept feeling discomfort....got to my destination and proceeded to get out of the car and my coat was stuck to the seat. I turned around and to look at the seat and there was a hole in the seat and my coat. The discomfort I felt was the burning from the seat.
Frequently asked questions
Is the 2007 Mercedes-Benz R350 a good car?
Based on 47 owner complaints filed with NHTSA, the 2007 R350 rates avoid: 2.5× as many complaints as a typical year of the R350 at the same age. It is one of the R350 years we suggest avoiding. Complaint counts don't account for sales volume or individual maintenance, so have any used car inspected before buying.
What is the most common problem with the 2007 Mercedes-Benz R350?
The suspension — 16 complaints, 34% of all complaints for this model year. Next are the engine & cooling (10) and seats (7).
How many recalls does the 2007 Mercedes-Benz R350 have?
There are 2 recalls for the 2007 Mercedes-Benz R350, the most recent from April 26, 2024 (vacuum). Recall repairs are free at any authorized dealer — check whether yours has been done with the VIN recall check.
What are the best and worst years of the Mercedes-Benz R350?
The best years by complaints, compared at the same age, are 2012, 2010 and 2009. Years to avoid or approach with caution: 2006 and 2007. See the full Mercedes-Benz R350 years comparison.
At what mileage do 2007 Mercedes-Benz R350 problems happen?
The median mileage reported in complaints is about 75,000 miles; 18% of problems with a recorded mileage started 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.