Mercedes-Benz SLC: reliability by registration year
2016-2020 · 5 registration years · 8,467 first tests
Registration years
First-attempt MOT results for every SLC registration year with at least 500 first tests in 2025. Pass rates rise with newer cars, so read a year against its neighbours rather than against the top of the table. Years without their own report are listed here with the same figures.
| Year | First tests | First-attempt pass | Incl. PRS | Most common failure |
|---|---|---|---|---|
| 2020 | 574 | 89.2% | 91.1% | |
| 2019 | 957 | 88.4% | 90.1% | |
| 2018 | 1,441 | 88.6% | 89.7% | |
| 2017 | 3,309 | 82.3% | 84.0% | Tyre condition (front) 20.0% |
| about 4 in every 100 worse than the years either side. What most often failed a 2017 SLC: Tyre condition (front) (20.0%) · Suspension arm ball joint (front) (16.2%) · Coil spring (rear) (8.9%) | ||||
| 2016 | 2,186 | 83.5% | 85.5% | Tyre condition (front) 21.9% |