Mercedes-Benz C 300 problems by year
462 owner complaints filed with NHTSA across 9 Mercedes-Benz C 300 model years. Last verified Sep 21, 2026. Complaint totals are lifetime counts — years that have been on the road longer accumulate more reports.
| Year | Complaints | Recalls | Most reported problem | |
|---|---|---|---|---|
| 2025 Limited reporting history | 4 | 2 | — | |
| 2024 Limited reporting history | 11 | 3 | — | |
| 2023 Limited reporting history | 22 | 9 | Forward Collision Avoidance | |
| 2022 | 25 | 9 | Electrical System | |
| 2021 | 14 | 7 | — | |
| 2020 | 33 | 9 | Engine | |
| 2019 | 67 | 17 | Engine | |
| 2018 Most complained | 99 | 18 | Engine | |
| 2017 Most complained | 216 | 15 | Engine |
How to read this. Complaints are unverified reports owners file with NHTSA’s Office of Defects Investigation, counted once per case number. Raw totals are not adjusted for sales volume, and recent model years have had less time on the road. “Most complained” flags years well above the model’s median; treat it as a signal for deeper research, not a verdict. This page is not affiliated with Mercedes-Benz.