Does the Ford Sierra fail the MOT on tyres more than it should?
The Ford Sierra records 1.93 tyres failure items per 100 initial MOT tests (2019–2024), against 3.90 expected for a car of the same age mix: less than expected for its class and age (−1.97, 95% interval −2.26 to −1.67). It ranks 507 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 Ford Sierra by registration
What exactly fails on tyres?
The most frequent DVSA defect wording in this group on the Ford Sierra is “A tyre seriously damaged”, recorded 140 times in 2019–2024.
| DVSA defect wording | Items | Per 100 tests |
|---|---|---|
| A tyre seriously damaged | 140 | 0.79 |
| Tyre tread depth not in accordance with the requirements | 82 | 0.46 |
| A tyre cords visible or damaged | 47 | 0.27 |
Source: DVSA MOT bulk data (OGL v3.0) · Window: 2019–2024 · n = 17,679 (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 Ford Sierra gets a tyres advisory, how often does it fail next time?
5.1% of Ford Sierra MOTs with a tyres advisory were followed by a fail in the same group at the next MOT, typically 12.2 months and 805 miles later (801 advisories followed).
Source: DVSA MOT bulk data (OGL v3.0) · Window: 2019–2024 · n = 801 (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
Ford Sierra by postcode area · Ford Sierra body, chassis and structure failures · Ford Sierra brakes failures · Ford Sierra vehicle identification failures · Ford Sierra lamps, reflectors and electrics failures · Ford Sierra noise, emissions and leaks failures · Ford Sierra road wheels failures · Ford Sierra seat belts and airbags failures · Ford Sierra steering failures · Ford Sierra suspension failures · Ford Sierra visibility failures