2021 Mercedes-Benz C 300 4matic Recalls
No NHTSA recalls on record for the 2021 Mercedes-Benz C 300 4matic. That means NHTSA has no open safety campaign for this vehicle — it does not guarantee the absence of problems. Owners have filed 3 complaints with NHTSA, most often about the air bags. Last updated July 5, 2026.
Complaints by component
What owners report
Verbatim reports filed with NHTSA, lightly edited for readability and with personal information removed.
“Driving and something came from underneath the vehicle and cause me to swerve in all the airbags deployed”
“Driving and something came from underneath the vehicle and cause me to swerve in all the airbags deployed”
“Driving and something came from underneath the vehicle and cause me to swerve in all the airbags deployed”
Recall, complaint, and investigation records from official NHTSA datasets (FLAT_RCL, FLAT_CMPL, FLAT_INV), synced weekly. Counts reflect NHTSA records for the 2021 Mercedes-Benz C 300 4matic as of July 5, 2026. Complaint narratives are consumer-submitted and unverified. This page contains ads and affiliate links. Full methodology.