Mercedes-Benz GLC 300 engine problems by year
122 NHTSA owner complaints name the engine across 7 GLC 300 model years. The most reported year is 2021 with 30 reports.
| Year | Engine reports | Share | Median mileage | |
|---|---|---|---|---|
| 2024 GLC 300 | 7 | 33% | — | |
| 2023 GLC 300 | 15 | 27% | — | |
| 2022 GLC 300 | 10 | 17% | — | |
| 2021 GLC 300 | 30 | 45% | — | |
| 2020 GLC 300 | 21 | 30% | — | |
| 2019 GLC 300 | 11 | 23% | — | |
| 2018 GLC 300 | 28 | 32% | — |
Share is the fraction of that year’s complaints naming the engine. Raw counts are not adjusted for sales volume — years that sold more units naturally accumulate more reports.