2020 Mercedes-Benz C300 Vehicle speed control Problems
- Complaints
- 2about this part
- Share
- 6%of 33 total for the year
- Median mileage
- 56,000miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 2 complaints about the vehicle speed control of the 2020 Mercedes-Benz C300, 6% of the 33 complaints for this model year. Where a mileage was given, the median is 56,000 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 2020 Mercedes-Benz C300. The contact stated that while at a stop, the vehicle failed to accelerate as intended. There was no warning light illuminated. The dealer was not contacted. The vehicle was not diagnosed or repaired. The manufacturer was made aware of the failure and referred the contact to the NHTSA Hotline to report the failure. The failure mileage was approximately 100,000.”
NHTSA complaint #11731613, filed 2026-04, 100,000 milesRelated service bulletins
- 10205215Jul 30, 2013Window lifter and outside mirror on passenger side malfunction after replacement of door control unit.
Vehicle 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 2020 Mercedes-Benz C300
8 complaintsOther or unknown
5 complaintsBody and structure
4 complaintsElectrical system
3 complaintsForward collision avoidance
3 complaintsFuel system
3 complaintsTransmission and drivetrain
3 complaintsVisibility (wipers, defrost, mirrors)
3 complaintsAir bags
2 complaintsBack-over prevention (rear camera)
2 complaintsLatches, locks and linkages
2 complaintsSteering
2 complaints
← All problems reported for the 2020 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