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Vehicle speed controlPart report

2003 Mercedes-Benz S430 Vehicle speed control Problems

Complaints
1about this part
Share
4%of 26 total for the year
Median mileage
64,000miles
Trend
Not enough dataFewer than 15 complaints, too few for a reliable trend.

NHTSA recorded 1 complaints about the vehicle speed control of the 2003 Mercedes-Benz S430, 4% of the 26 complaints for this model year. Where a mileage was given, the median is 64,000 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.

“The contact owns a 2003 mercedes benz S430. The contact stated that the vehicle does not accelerate when the accelerator pedal is depressed. The vehicle reacted as if the brake pedal was depressed. He took the vehicle to the dealer and they stated that the vehicle was programmed in that manner. The dealer kept the vehicle and provided him with a loaner. The loaner was a mercedes also, but the failure did not occur. The contact believes that the failure was due to a manufacturer defect. The mechanic stated that they could not assist. The current and failure mileages were 64,000. …”

NHTSA complaint #10279458, filed 2009-08, 64,000 miles

Vehicle speed control: other model years

YearComplaintsShare of year
2006325%
200519%
2004211%
200314%
200213%
200134%
2000313%

Other parts of the 2003 Mercedes-Benz S430

Electrical system
12 complaints
Suspension
4 complaints
Exterior lighting
3 complaints
Seat belts
3 complaints
Engine
2 complaints
Other or unknown
2 complaints
Transmission and drivetrain
2 complaints
Air bags
1 complaints
Electronic stability control
1 complaints
Equipment
1 complaints
Seats
1 complaints
Steering
1 complaints

← All problems reported for the 2003 Mercedes-Benz S430

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