Does the Mercedes-Benz GLB fail the MOT on seat belts and airbags more than it should?

The Mercedes-Benz GLB records 0.62 seat belts and airbags failure items per 100 initial MOT tests (2019–2024), against 0.26 expected for a car of the same age mix: about as expected for its class and age (the difference is within its interval or under 0.5 items per 100 tests) (+0.36, 95% interval +0.20 to +0.51). It ranks 170 of 627 models on seat belts and airbags (1 = most failures above expected).

Data release dvsa-2024-v2 (24 Sep 2026) · page updated 30 Sep 2026 · all models on seat belts and airbags · check a Mercedes-Benz GLB by registration

No single seat belts and airbags defect wording reaches 30 items on the Mercedes-Benz GLB; the failures are spread across several.