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

The Mercedes-Benz GLS passes its MOT first time 86% of the time, from 3,052 MOT tests. See pass rates by year, common failures and typical mileage.

- First-time MOT pass rate: 86%
- MOT tests analysed: 3,052 (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 |
| --- | --- | --- | --- |
| 2025 | ED | 1 (very few mots) | 100% |
| 2024 | ED | 4 (very few mots) | 100% |
| 2024 | Diesel | 2 (very few mots) | 100% |
| 2023 | Diesel | 33 (few mots) | 94% |
| 2023 | Hybrid | 5 (very few mots) | 60% |
| 2023 | ED | 1 (very few mots) | 100% |
| 2022 | Diesel | 357 | 85% |
| 2022 | Hybrid | 25 (few mots) | 88% |
| 2021 | Diesel | 275 | 86% |
| 2021 | Hybrid | 16 (very few mots) | 100% |
| 2020 | Diesel | 395 | 86% |
| 2019 | Diesel | 351 | 85% |
| 2019 | Petrol | 35 (few mots) | 89% |
| 2019 | ED | 1 (very few mots) | 0% |
| 2018 | Diesel | 486 | 86% |
| 2018 | Petrol | 70 (few mots) | 83% |
| 2017 | Diesel | 528 | 89% |
| 2017 | Petrol | 81 (few mots) | 90% |
| 2016 | Diesel | 336 | 85% |
| 2016 | Petrol | 49 (few mots) | 96% |
| 2014 | Diesel | 1 (very few mots) | 100% |

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