# Mercedes-Benz SLC MOT reliability: pass rate and common failures | RegFlags

The Mercedes-Benz SLC passes its MOT first time 85% of the time, from 8,967 MOT tests. See pass rates by year, common failures and typical mileage.

- First-time MOT pass rate: 85%
- MOT tests analysed: 8,967 (DVSA anonymised MOT data, 2025)
- Most common failure area: Wheels & tyres

## By year of first use and fuel

| Year | Fuel | MOT tests | First-time pass rate |
| --- | --- | --- | --- |
| 2021 | Petrol | 195 | 90% |
| 2020 | Petrol | 601 | 90% |
| 2019 | Petrol | 993 | 89% |
| 2018 | Petrol | 1,322 | 90% |
| 2018 | Diesel | 172 | 81% |
| 2017 | Petrol | 1,914 | 85% |
| 2017 | Diesel | 1,516 | 79% |
| 2016 | Petrol | 1,151 | 86% |
| 2016 | Diesel | 1,101 | 81% |
| 2015 | Petrol | 1 (very few mots) | 100% |
| 2015 | Diesel | 1 (very few mots) | 0% |

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