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

The Mercedes-Benz GLB passes its MOT first time 90% of the time, from 12,092 MOT tests. See pass rates by year, common failures and typical mileage.

- First-time MOT pass rate: 90%
- MOT tests analysed: 12,092 (DVSA anonymised MOT data, 2025)
- Most common failure area: Wheels & tyres
- Licensed in Great Britain: 1,253 (2026 Q2)

## By year of first use and fuel

| Year | Fuel | MOT tests | First-time pass rate |
| --- | --- | --- | --- |
| 2025 | Hybrid | 6 (very few mots) | 100% |
| 2025 | Diesel | 1 (very few mots) | 100% |
| 2024 | Diesel | 16 (very few mots) | 100% |
| 2024 | Hybrid | 8 (very few mots) | 100% |
| 2023 | Petrol | 226 | 95% |
| 2023 | Diesel | 97 (few mots) | 98% |
| 2022 | Petrol | 4,184 | 91% |
| 2022 | Diesel | 989 | 90% |
| 2021 | Petrol | 2,469 | 90% |
| 2021 | Diesel | 1,523 | 89% |
| 2021 | Hybrid | 2 (very few mots) | 100% |
| 2020 | Diesel | 2,269 | 88% |
| 2020 | Petrol | 302 | 88% |

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