Dec 9, 2025SuspensionTransmission & drivetrainAirbags
Driving and something came from underneath the vehicle and cause me to swerve in all the airbags deployed
NHTSA ODI 11704073
Home · 2021 Mercedes-benz C-class Phev · Complaints
What 14 owners told NHTSA about the 2021 Mercedes-benz C-class Phev
These are the actual owner complaints behind this car’s reliability verdict, filed with the federal government, unedited. They’re unverified reports, not confirmed defects: read them as leads for your pre-purchase inspection, not a diagnosis.
All (14)Engine (7)Fuel system (3)Airbags (2)Transmission & drivetrain (2)Backup camera & sensors (1)Electrical system (1)Suspension (1)Visibility & wipers (1)
2 of 14 complaints match · Airbags · clear filters
Feb 23, 2022Airbags
The contact owns a 2021 Mercedes-Benz C300. The contact stated while driving at an unknown speed, there was a burning odor inside the vehicle. The contact stated the passenger side air bags was enabled warning light was illuminated. The contact also stated the vehicle made an abnormal noise. The contact took the vehicle to the local dealer but was unable to duplicate the failure. The manufacturer had not been informed of the failure. The failure mileage was unknown.
NHTSA ODI 11453645
Working with the data? Download all 14 complaints as CSV · fetched from NHTSA July 21, 2026
How to use these: a complaint is one owner’s report, filed voluntarily and published unverified. Patterns matter more than any single story. If several owners describe the same failure at similar mileage, put that system at the top of your pre-purchase inspection list. Back to the full 2021 Mercedes-benz C-class Phev verdict →