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

The Mercedes-Benz X passes its MOT first time 81% of the time, from 3,932 MOT tests. See pass rates by year, common failures and typical mileage.

- First-time MOT pass rate: 81%
- MOT tests analysed: 3,932 (DVSA anonymised MOT data, 2025)
- Most common failure area: Brakes

## By year of first use and fuel

| Year | Fuel | MOT tests | First-time pass rate |
| --- | --- | --- | --- |
| 2021 | Diesel | 1 (very few mots) | 0% |
| 2020 | Diesel | 713 | 86% |
| 2019 | Diesel | 1,722 | 81% |
| 2018 | Diesel | 1,334 | 80% |
| 2017 | Diesel | 162 | 77% |

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