Does the Mercedes-Benz B-Class fail the MOT on vehicle identification more than it should?
The Mercedes-Benz B-Class records 0.32 vehicle identification failure items per 100 initial MOT tests (2019–2024), against 0.37 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) (−0.05, 95% interval −0.07 to −0.03). It ranks 402 of 636 models on vehicle identification (1 = most failures above expected).
Data release dvsa-2024-v2 (24 Sep 2026) · page updated 30 Sep 2026 · all models on vehicle identification · check a Mercedes-Benz B-Class by registration
What exactly fails on vehicle identification?
The most frequent DVSA defect wording in this group on the Mercedes-Benz B-Class is “Number plate does not conform to the specified requirements”, recorded 617 times in 2019–2024.
| DVSA defect wording | Items | Per 100 tests |
|---|---|---|
| Number plate does not conform to the specified requirements | 617 | 0.16 |
| Number plate inscription missing or illegible | 344 | 0.09 |
| Number plate missing or so insecure that it is likely to fall off | 216 | 0.06 |
| Number plate showing an incorrect registration | 62 | 0.02 |
Source: DVSA MOT bulk data (OGL v3.0) · Window: 2019–2024 · n = 391,293 (initial tests) · Method: failure items (major and minor) grouped by DVSA's defect tree; wordings with 30+ items · Updated: 30 Sep 2026 · Release: dvsa-2024-v2 · CSV
If a Mercedes-Benz B-Class gets a vehicle identification advisory, how often does it fail next time?
3.2% of Mercedes-Benz B-Class MOTs with a vehicle identification advisory were followed by a fail in the same group at the next MOT, typically 12 months and 6,028 miles later (4,702 advisories followed).
Source: DVSA MOT bulk data (OGL v3.0) · Window: 2019–2024 · n = 4,702 (advisories followed) · Method: the same vehicles followed to their next ordinary MOT · Updated: 30 Sep 2026 · Release: dvsa-2024-v2 · CSV
Other pages for this model
Mercedes-Benz B-Class 2005 · Mercedes-Benz B-Class 2006 · Mercedes-Benz B-Class 2007 · Mercedes-Benz B-Class 2008 · Mercedes-Benz B-Class 2009 · Mercedes-Benz B-Class 2010 · Mercedes-Benz B-Class 2011 · Mercedes-Benz B-Class 2012 · Mercedes-Benz B-Class 2013 · Mercedes-Benz B-Class 2014 · Mercedes-Benz B-Class 2015 · Mercedes-Benz B-Class 2016 · Mercedes-Benz B-Class 2017 · Mercedes-Benz B-Class 2018 · Mercedes-Benz B-Class 2019 · Mercedes-Benz B-Class 2020 · Mercedes-Benz B-Class in Norway · Mercedes-Benz B-Class in Finland · Mercedes-Benz B-Class in the Netherlands · Mercedes-Benz B-Class by postcode area · Mercedes-Benz B-Class body, chassis and structure failures · Mercedes-Benz B-Class brakes failures · Mercedes-Benz B-Class lamps, reflectors and electrics failures · Mercedes-Benz B-Class noise, emissions and leaks failures · Mercedes-Benz B-Class road wheels failures · Mercedes-Benz B-Class seat belts and airbags failures · Mercedes-Benz B-Class steering failures · Mercedes-Benz B-Class suspension failures · Mercedes-Benz B-Class tyres failures · Mercedes-Benz B-Class visibility failures