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Vehicle speed controlPart report

2003 Mercedes-Benz C320 Vehicle speed control Problems

Complaints
2about this part
Share
9%of 22 total for the year
Median mileage
50miles
Trend
Not enough dataFewer than 15 complaints, too few for a reliable trend.

NHTSA recorded 2 complaints about the vehicle speed control of the 2003 Mercedes-Benz C320, 9% of the 22 complaints for this model year. Where a mileage was given, the median is 50 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 fuel gauge failed to function. It didn't register the correct gas level in the tank. The digital console light malfunctioned. It would either not illuminate when the vehicle was started or when illuminated it will suddenly go out. The vehicle hesitated upon acceleration when driven for long distances.”

NHTSA complaint #10042241, filed 2003-10, 50 miles

“The throttle linkage and control pedal malfunction nearly resulted in a serious accident. The brakes had to be violently applied with both feet to prevent the surging vehicle from rear-ending a vehicle in front of mine at a traffic intersection.”

NHTSA complaint #766749, filed 2002-09

Vehicle speed control: other model years

YearComplaintsShare of year
200329%
200211%
200158%

Other parts of the 2003 Mercedes-Benz C320

Electrical system
7 complaints
Transmission and drivetrain
5 complaints
Air bags
4 complaints
Engine cooling
3 complaints
Fuel system
3 complaints
Visibility (wipers, defrost, mirrors)
3 complaints
Exterior lighting
2 complaints
Suspension
2 complaints
Brakes
1 complaints
Engine
1 complaints
Equipment
1 complaints
Latches, locks and linkages
1 complaints

← All problems reported for the 2003 Mercedes-Benz C320

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