Does the MGB fail the MOT on tyres more than it should?
The MGB records 1.43 tyres failure items per 100 initial MOT tests (2019–2024), against 3.94 expected for a car of the same age mix: less than expected for its class and age (−2.51, 95% interval −2.72 to −2.30). It ranks 555 of 751 models on tyres (1 = most failures above expected).
Data release dvsa-2024-v2 (24 Sep 2026) · page updated 30 Sep 2026 · all models on tyres · check a MGB by registration
What exactly fails on tyres?
The most frequent DVSA defect wording in this group on the MGB is “A tyre seriously damaged”, recorded 210 times in 2019–2024.
| DVSA defect wording | Items | Per 100 tests |
|---|---|---|
| A tyre seriously damaged | 210 | 0.61 |
| Tyre tread depth not in accordance with the requirements | 81 | 0.24 |
| A tyre valve seriously damaged or misaligned likely to cause sudden deflation of the tyre | 43 | 0.13 |
| A tyre cords visible or damaged | 42 | 0.12 |
Source: DVSA MOT bulk data (OGL v3.0) · Window: 2019–2024 · n = 34,158 (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 MGB gets a tyres advisory, how often does it fail next time?
3.3% of MGB MOTs with a tyres advisory were followed by a fail in the same group at the next MOT, typically 12.5 months and 262 miles later (860 advisories followed).
Source: DVSA MOT bulk data (OGL v3.0) · Window: 2019–2024 · n = 860 (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
MGB in the Netherlands · MGB by postcode area · MGB body, chassis and structure failures · MGB brakes failures · MGB vehicle identification failures · MGB lamps, reflectors and electrics failures · MGB noise, emissions and leaks failures · MGB road wheels failures · MGB seat belts and airbags failures · MGB steering failures · MGB suspension failures · MGB visibility failures