Mercedes-Benz GLB: reliability by registration year
2020-2022 · 3 registration years · 11,114 first tests
Registration years
First-attempt MOT results for every GLB 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 |
|---|---|---|---|---|
| 2022 | 4,849 | 90.9% | 92.7% | Tyre condition (front) 20.7% |
| about 2 in every 100 worse than the years either side. What most often failed a 2022 GLB: Tyre condition (front) (20.7%) · Brake pads (front) (11.6%) | ||||
| 2021 | 3,800 | 89.3% | 90.8% | Tyre condition (front) 26.4% |
| 2020 | 2,465 | 88.0% | 89.7% | Tyre condition (rear) 20.0% |