Does the Mercedes-Benz B fail the MOT on body, chassis and structure more than it should?

The Mercedes-Benz B records 0.70 body, chassis and structure failure items per 100 initial MOT tests (2019–2024), against 1.31 expected for a car of the same age mix: less than expected for its class and age (−0.61, 95% interval −0.95 to −0.28). It ranks 353 of 663 models on body, chassis and structure (1 = most failures above expected).

Data release dvsa-2024-v2 (24 Sep 2026) · page updated 30 Sep 2026 · all models on body, chassis and structure · check a Mercedes-Benz B by registration

No single body, chassis and structure defect wording reaches 30 items on the Mercedes-Benz B; the failures are spread across several.