There are 3 stored owner reports matching the speed control & cruise leading-label group for the 2003 Mercedes-Benz C-Class in our NHTSA-sourced dataset. These are unverified consumer reports and may not reflect confirmed defects.
This group counts stored reports whose component label starts with one of this site's matching prefixes, ignoring case. Each matching report counts once within the group. Components mentioned later in the label or only in the narrative are not searched. How component counts work
Loaded 3 of 3 matching reports.
Open the full vehicle complaint log (all categories)WHILE VISITING SOUTH EASTERN UTAH IN A PERIOD OF ONE WEEK THERE WAS NO THROTTLE RESPONSE ON THREE SEPARATE OCCASIONS. THROTTLE RESPONDED ON THE THIRD PRESS OF GAS PEDAL ON EACH OCCASION. CAR HAD ONLY 7,500 MILES ON IT. ON FIRST OCCASION, THERE WAS A STRONG SMELL OF GAS INSIDE THE CAR. DASH BOARD INDICATOR DID NOT SHOW ANY MALFUNCTION DURING ANY OF THESE OCCASIONS. *AK
TL*THE CONTACT OWNS A 2003 MERCEDES C240. SHE STATED THAT HER VEHICLE WOULD NOT ACCELERATE FAST ENOUGH TO SAFELY MERGE IN AND OUT OF TRAFFIC. THE MANUFACTURER STATED THAT THEY WOULD BE UNABLE TO ASSIST HER AND THEY WOULD NOT ACCEPT THE EXTENDED WARRANTY. THE CONTACT STATED THAT SHE WOULD FILE A COMPLAINT WITH THE STATE ATTORNEY GENERALS OFFICE DUE TO HER VEHICLE BEING A LEMON. THE FAILURE WAS 77 AND THE CURRENT MILEAGE WAS 40,900.
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.*AK
Complaints are unverified consumer reports submitted to NHTSA. A high complaint count may reflect vehicle popularity, not defect severity. Data sourced from NHTSA public records.
NHTSA source checks for this vehicle year
Checks are recorded separately for each dataset, not for the whole page. Dates use UTC. A missing check date does not mean no records exist.
Vehicle import recorded: Aug 31, 2026. This is the stored import date, not confirmation that every source was successfully refreshed.