Does the Seat Mii fail the MOT on tyres more than it should?

The Seat Mii records 4.98 tyres failure items per 100 initial MOT tests (2019–2024), against 8.14 expected for a car of the same age mix: less than expected for its class and age (−3.16, 95% interval −3.34 to −2.98). It ranks 596 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 Seat Mii by registration

What exactly fails on tyres?

The most frequent DVSA defect wording in this group on the Seat Mii is “Tyre tread depth not in accordance with the requirements”, recorded 2,289 times in 2019–2024.

Seat Mii: most frequent tyres defect wordings, 2019–2024 (30+ items each)
DVSA defect wording	Items	Per 100 tests
Tyre tread depth not in accordance with the requirements	2,289	2.31
A tyre seriously damaged	1,672	1.69
A tyre cords visible or damaged	445	0.45
Tyre obviously under inflated	129	0.13
A tyre has a lump, bulge or tear caused by separation or partial failure of its structure. This includes any lifting of the tread rubber	115	0.12

Source: DVSA MOT bulk data (OGL v3.0) · Window: 2019–2024 · n = 99,179 (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 Seat Mii gets a tyres advisory, how often does it fail next time?

6.4% of Seat Mii MOTs with a tyres advisory were followed by a fail in the same group at the next MOT, typically 12 months and 5,729 miles later (17,413 advisories followed).

Source: DVSA MOT bulk data (OGL v3.0) · Window: 2019–2024 · n = 17,413 (advisories followed) · Method: the same vehicles followed to their next ordinary MOT · Updated: 30 Sep 2026 · Release: dvsa-2024-v2 · CSV

Does the Seat Mii fail the MOT on tyres more than it should?

What exactly fails on tyres?

If a Seat Mii gets a tyres advisory, how often does it fail next time?

Related pages

Other pages for this model