2009 Mercedes-Benz C300 Vehicle speed control Problems
- Complaints
- 8about this part
- Share
- 1%of 576 total for the year
- Median mileage
- 37,080miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 8 complaints about the vehicle speed control of the 2009 Mercedes-Benz C300, 1% of the 576 complaints for this model year. Where a mileage was given, the median is 37,080 miles. 2 of these say a crash was involved, according to the filers.
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.
“My car every so often won?t start battery is good starter is good just does nothing happened over 10x had it towed to 5 mechanics shops and mercedes can?t diagnose problem because after a day maybe two sometimes 4 or 5 the car will just start up on its own and then a few weeks or months we go through it all over again researched and other mercedes C300 drivers have the same problem for months and its the steering lock module.”
NHTSA complaint #11326438, filed 2020-05, 85,000 miles“The instrument cluster on my mercedes C300 has died. The speedometer is broken, so I can not tell how fast my car is going. I also have no idea how much gas I have in the car nor oil pressure or engine temperature or rpms. This seems dangerous to me.”
NHTSA complaint #11140495, filed 2018-10, 70,000 miles“Car was driving very well suddenly flashes on message center power steering malfunction srs,ABS,ets,esb,ebr esp in operative and it keeps flashing when car is in motion, then disappear when ignition is off, I have notice several complaints on your website with this same issues with this same year, model and other mercedes,a week a go I also receive a message to check brake pad wear before this message came up. I replace brake pads and rotos, and I am also being told it could also be my brake light switch or speed sensors, all was replace still as message. …”
NHTSA complaint #11019383, filed 2017-08, 59,000 miles“At 5:00pm, I was driving the mercedes benz C300, year 2009, 9010 miles in the parking lot of ymca in la canada, ca at 3 miles/hr. I prepared to stop the car and stepped on the brake, suddenly, the engine rev up and accelerated. The car jumped over the stop bumper but I pressed very hard on the brake and finally the car stopped and the engine was off. The front of the car was about 2 feet from the wall at the parking lot. I was so scared because it was the first time I experienced the unintended acceleration. …”
NHTSA complaint #10331807, filed 2010-05, 9,010 miles“I was driving on the parkway at ~40 MPH and attempted to slow down by stepping on the brake. The car did not slow down but accelerated. And struck the car in front of me. Every time I pressed on the brake, the car accelerated so that the car struck the car in front twice. I tried to turn off the ignition and was unable to. Finally, I pushed hard on the brake enough to slow it down and I was ten able to put the car in neutral. The engine raced but I was then able to turn it off. Despite damage to the front of the vehicle, the airbags did not deploy.”
NHTSA complaint #10330370, filed 2010-05, 22,000 milesVehicle speed control: other model years
| Year | Complaints | Share of year |
|---|---|---|
| 2024 | 1 | 9% |
| 2022 | 1 | 4% |
| 2020 | 2 | 6% |
| 2019 | 3 | 4% |
| 2017 | 2 | 1% |
| 2016 | 2 | 1% |
| 2015 | 5 | 1% |
| 2014 | 3 | 3% |
| 2013 | 7 | 3% |
| 2012 | 1 | 0% |
| 2011 | 3 | 1% |
| 2010 | 4 | 1% |
| 2009 | 8 | 1% |
| 2008 | 8 | 1% |
Other parts of the 2009 Mercedes-Benz C300
198 complaintsAir bags
182 complaintsSteering
136 complaintsExterior lighting
118 complaintsSuspension
36 complaintsOther or unknown
31 complaintsBody and structure
27 complaintsBrakes
21 complaintsElectronic stability control
20 complaintsEngine
16 complaintsTires
9 complaintsSeat belts
8 complaints
← All problems reported for the 2009 Mercedes-Benz C300
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