2019 Mercedes-Benz C300 Seat belts Problems
- Complaints
- 5about this part
- Share
- 7%of 69 total for the year
- Median mileage
- —not reported
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 5 complaints about the seat belts of the 2019 Mercedes-Benz C300, 7% of the 69 complaints for this model year. 2 recall campaigns on record are filed under a similar system.
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.
“On both front seatbelts. After disconnecting, they both do not retract. Often they get stuck hanging below door after closing the door (both sides). I have brought the car to Mercedes Benz service dept in Mobile AL. I am told that as long as I can manually feed them back there is no problem. This explanation is absurd!”
NHTSA complaint #11452804, filed 2022-02“My 2019 Mercedes-Benz C300 Coupe’s front driver seat belt will not fully retract to its stowed position. This creates THREE safety hazards: 1.Passenger Trip Hazard: The extended belt causes difficulty when exiting from the rear seat — passengers can easily trip over the non-retracting belt 2.Door Damage Risk: Belt gets stuck in the door, preventing proper closure and potentially damaging the door or wearing down the seat belt webbing 3.Safety System Failure: A belt that doesn’t retract properly may not fully restrain occupants in a crash, compromising the seat belt safety system Dealer…”
NHTSA complaint #11742426, filed 2026-06“The contact's husband owns a 2019 Mercedes-Benz C300. The contact stated that the front driver's side and passenger's side seat belts failed to retract as designed. The vehicle was taken to the dealer, where it was determined that the seat belt assemblies needed to be replaced. The dealer informed the contact that the VIN was not included in NHTSA Campaign Number: 21V032000 (Seat Belts). The contact was provided with an estimate for the repair. The vehicle was not repaired due to the cost. …”
NHTSA complaint #11681509, filed 2025-08Related recalls
- 21V032000Jan 29, 2021Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2017-2021 C300, 2017-2020 AMG C43, and AMG C63 vehicles. The front seat belts might not fully retract to…Covers: Mercedes-Benz C300 2017–2021, AMG C43 2017–2020, AMG C63 2017–2020
- 18V839000Nov 27, 2018Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2019 C300 4Matic Cabriolet, C43 AMG Cabriolet, C300 Cabriolet, C300 Coupe, C300 4Matic Coupe, C43 AMG…Covers: Mercedes-Benz C300 2019, E 450 2019, AMG C43 2019 +5 more
Related service bulletins
- 10151959Jul 23, 2018Seat belt extender toothed rack sluggish or makes noises
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 2019 Mercedes-Benz C300
17 complaintsElectrical system
13 complaintsFuel system
12 complaintsOther or unknown
10 complaintsBody and structure
7 complaintsBrakes
6 complaintsTransmission and drivetrain
6 complaintsSteering
5 complaintsBack-over prevention (rear camera)
3 complaintsForward collision avoidance
3 complaintsVehicle speed control
3 complaintsAir bags
1 complaints
← All problems reported for the 2019 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