2015 Mercedes-Benz C300 Seat belts Problems
- Complaints
- 2about this part
- Share
- 1%of 381 total for the year
- Median mileage
- 27,000miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 2 complaints about the seat belts of the 2015 Mercedes-Benz C300, 1% of the 381 complaints for this model year. Where a mileage was given, the median is 27,000 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.
“Back driver side seat belt hard to engage and will come unengaged without prompting. Brake pads wear out every 30,000 miles back passenger side tire and valve has been replaced 4 times in less than 70,000 miles and still looses air intermittently. Car can be parked or moving. No consistency in when or amount air pressure is lost.”
NHTSA complaint #11286700, filed 2019-12, 27,000 miles“I would like to bring to your attention a potentially dangerous design flaw in my 2015 Mercedes C300. That design flaw resulted in me having to cut the seat belt off a passenger, my wife, in order to free her from the car. I will also explain in detail the admittedly rare circumstances that led to this potentially dangerous incident. In May 2021, my wife underwent outpatient surgery of her left shoulder. After the surgery a nurse brought my wife to the curb in front of the hospital, where I had pulled up my car. …”
NHTSA complaint #11425042, filed 2021-07Related service bulletins
- 10151959Jul 23, 2018Seat belt extender toothed rack sluggish or makes noises
- 10058547Jun 30, 2015Xentry (daimler): some vehicles experience an incomplete normalization of seat cushion and blocking between seat belt buckle and control unit detects blockage and aborts…
Seat belts: other model years
| Year | Complaints | Share of year |
|---|---|---|
| 2022 | 1 | 4% |
| 2019 | 5 | 7% |
| 2018 | 1 | 1% |
| 2017 | 21 | 10% |
| 2016 | 1 | 0% |
| 2015 | 2 | 1% |
| 2013 | 1 | 0% |
| 2012 | 1 | 0% |
| 2011 | 2 | 0% |
| 2010 | 5 | 1% |
| 2009 | 8 | 1% |
| 2008 | 22 | 3% |
Other parts of the 2015 Mercedes-Benz C300
127 complaintsFuel system
70 complaintsOther or unknown
63 complaintsBody and structure
60 complaintsElectrical system
50 complaintsSteering
23 complaintsSuspension
22 complaintsTransmission and drivetrain
20 complaintsVisibility (wipers, defrost, mirrors)
16 complaintsAir bags
12 complaintsBrakes
9 complaintsForward collision avoidance
8 complaints
← All problems reported for the 2015 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