Does the Toyota iQ fail the MOT on tyres more than it should?

The Toyota iQ records 5.13 tyres failure items per 100 initial MOT tests (2019–2024), against 10.11 expected for a car of the same age mix: less than expected for its class and age (−4.98, 95% interval −5.17 to −4.78). It ranks 693 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 Toyota iQ by registration

What exactly fails on tyres?

The most frequent DVSA defect wording in this group on the Toyota iQ is “A tyre seriously damaged”, recorded 2,168 times in 2019–2024.

Toyota iQ: most frequent tyres defect wordings, 2019–2024 (30+ items each)
DVSA defect wording	Items	Per 100 tests
A tyre seriously damaged	2,168	2.09
Tyre tread depth not in accordance with the requirements	2,104	2.03
A tyre cords visible or damaged	444	0.43
Tyre obviously under inflated	266	0.26
A tyre valve seriously damaged or misaligned likely to cause sudden deflation of the tyre	146	0.14

Source: DVSA MOT bulk data (OGL v3.0) · Window: 2019–2024 · n = 103,601 (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 Toyota iQ gets a tyres advisory, how often does it fail next time?

6.9% of Toyota iQ MOTs with a tyres advisory were followed by a fail in the same group at the next MOT, typically 12 months and 4,040 miles later (17,741 advisories followed).

Source: DVSA MOT bulk data (OGL v3.0) · Window: 2019–2024 · n = 17,741 (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

Does the Toyota iQ fail the MOT on tyres more than it should?

What exactly fails on tyres?

If a Toyota iQ gets a tyres advisory, how often does it fail next time?

Related pages

Other pages for this model