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Vehicle speed controlPart report

2006 Mercedes-Benz R350 Vehicle speed control Problems

Complaints
2about this part
Share
2%of 99 total for the year
Median mileage
86,500miles
Trend
Not enough dataFewer than 15 complaints, too few for a reliable trend.

NHTSA recorded 2 complaints about the vehicle speed control of the 2006 Mercedes-Benz R350, 2% of the 99 complaints for this model year. Where a mileage was given, the median is 86,500 miles.

Fewer than 15 complaints name this part, so treat the figures as a rough indication only.

Example complaints

Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.

“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.”

NHTSA complaint #10949628, filed 2017-02, 128,000 miles

“The contact owns a 2006 Mercedes-Benz R350. When attempting to accelerate the vehicle hesitated then accelerated up to 20000 rpms (tachometer red line). He was able to turn the engine off. The vehicle was towed to the dealer and repaired. Several months after the repair the failure resurfaced. The vehicle was towed again to the dealer and a technician concluded that the transmission's electronic device failed. However he speculates that the electronic throttle failed. The failure mileage was approximately 45,000. The current mileage was approximately 49,000.”

NHTSA complaint #10286609, filed 2009-10, 45,000 miles

Vehicle speed control: other model years

YearComplaintsShare of year
200622%

Other parts of the 2006 Mercedes-Benz R350

Suspension
26 complaintsEngine
17 complaintsEngine cooling
16 complaintsElectrical system
14 complaintsTransmission and drivetrain
13 complaintsSeats
9 complaintsExterior lighting
7 complaintsSteering
5 complaintsFuel system
4 complaintsOther or unknown
4 complaintsAir bags
3 complaintsBrakes
3 complaints

← All problems reported for the 2006 Mercedes-Benz R350

About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 31, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.

To check a specific vehicle for open recalls, use its VIN at nhtsa.gov/recalls. Methodology