Complaints by model year
Each bar is one model year. Highlighted: 2017. The most recent years are still collecting complaints.
NHTSA ODI complaints (public domain) · updated 23 Oct 2026
Year by year
| Model year | Complaints | Recalls |
|---|---|---|
| 2026 | 2 | 1 |
| 2025 | 4 | 2 |
| 2024 C 300 | 11 | 3 |
| 2023 C 300 | 22 | 9 |
| 2022 C 300 | 25 | 9 |
| 2021 C 300 | 14 | 7 |
| 2020 C 300 | 33 | 9 |
| 2019 C 300 | 69 | 17 |
| 2018 C 300Most complaints | 99 | 18 |
| 2017 C 300Most complaints | 216 | 15 |
A model year gets its own page when it has enough data for at least three sections
Most common problems
- Engine150
- Unknown or other77
- Electrical system75
- Fuel/propulsion system56
- Structure53
- Steering33
- Forward collision avoidance29
- Seat belts28
NHTSA ODI complaints, all model years
Fuel consumption by year
Official Canadian test results for 5 model years, best variant per year. Combined consumption ranges from 8.1–11.4 L/100 km.
| Year | Variant | City | Highway | Combined |
|---|---|---|---|---|
| 2026 | C 300 Sedan · Compact · Premium gasoline | 9.3 | 6.7 | 8.1 |
| 2011 | C 300 · Compact · Premium gasoline | 13.2 | 9.3 | 11.4 |
| 2010 | C 300 · Compact · Premium gasoline | 13.2 | 9.3 | 11.4 |
| 2009 | C 300 · Compact · Premium gasoline | 13.2 | 9.3 | 11.4 |
| 2008 | C 300 · Compact · Premium gasoline | 13.2 | 9.1 | 11.4 |
Litres per 100 km. Natural Resources Canada, Fuel consumption ratings (open.canada.ca) · Open Government Licence – Canada
Recalls
46 campaigns cover the C 300; the latest 12 are below.
Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2020-2021 CLA, 2019-2022 A-Class, 2022-2023 C-Class, 2024 CLE, 2020-2026 GLA/GLB, and 2023-2024 GLC vehicles. Please refer to MBUSA's recall report for specific model information. The micro-switch in the driver's door lock may corrode and fail to detect an open door, preventing the electronic parking brake or "Auto-Park" feature from engaging automatically. This may result in a vehicle rollaway.
Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2024-2026 AMG GT, C-Class, E-Class, SL, CLE, and GLC vehicles. The infotainment control unit may reset while the vehicle is in motion and cause the instrument panel display to go blank.
Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2023-2024 C-Class, E-Class, S-Class, SL, GLC, EQE SUV, EQE, EQS SUV, and EQS vehicles that were incorrectly repaired under recall 24V-115. An incorrect fuse box that was not designed for the vehicle may have been installed.
Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2022-2025 C 300, and 2023-2024 AMG C 43 vehicles. The driver-side seat belt cover may not be properly installed on the seat belt tensioner, which can cause the seat belt anchor to come loose.
Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2022-2023 C 300 vehicles. The bolt securing the electrical wire to the pre-fuse box could be improperly tightened, causing the wire to overheat. MBUSA's number for this recall is 2024070005.
Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2023-2024 C300, AMG C43, S580e, S580, Maybach S580, Maybach S680, AMG SL43, AMGSL63, GLC300, EQE350, EQE500, EQS450, EQS580, AMG EQS, 2023 S500, AMG SL55, AMG EQE, 2024 E350, E450, AMG C63e S, CLE300 Coupe, CLE450 Coupe, and GLC300 Coupe vehicles. The 80-Amp fuses may have been manufactured incorrectly, which can cause the fuses to fail.
Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2021-2024 GLE, GLS, C-Class, E-Class, S-Class, SL, GLC, CLS, AMG GT, and G-Class vehicles. Please refer to MBUSA's recall report for specific vehicle details. The fuel pump may shutdown, causing a loss of drive power.
Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2014-2020 C-Class, CLA, GLA, S-Class, GLC, and GLE vehicles. Please refer to MBUSA's recall report for specific vehicle details. The front roof panel located between the windshield and the panoramic sunroof may not have been bonded correctly to the vehicle during a prior repair, allowing the front panel to detach from the vehicle.
Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2022-2023 C300 and 2023 AMG C43 vehicles. The ground connections for the electrical wiring harness may not be secured properly, which can result in the electrical wiring harness overheating.
Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2022-2023 C300 and 2023 AMG C43 vehicles. The transmission wiring harness may be the incorrect length, which can result in harness damage and a loss of drive power.
Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2021-2023 C-Class, E-Class, S-Class, CLS, SL, GT, GLC, GLE, GLS, and G-Class vehicles. Please refer to MBUSA's recall report for specific vehicle details. The fuel pump may shutdown, which can result in a loss of drive power.
Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2022 C300 vehicles. Moisture accumulation in the trunk may leak into the signal acquisition module (SAM), causing an electrical short circuit.
NHTSA recalls