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

The Toyota iQ records 8.78 brakes failure items per 100 initial MOT tests (2019–2024), against 13.69 expected for a car of the same age mix: less than expected for its class and age (−4.91, 95% interval −5.14 to −4.69). It ranks 564 of 712 models on brakes (1 = most failures above expected).

Data release dvsa-2024-v2 (24 Sep 2026) · page updated 30 Sep 2026 · all models on brakes · check a Toyota iQ by registration

What exactly fails on brakes?

The most frequent DVSA defect wording in this group on the Toyota iQ is “Brake pipe damaged or excessively corroded”, recorded 2,478 times in 2019–2024.

Toyota iQ: most frequent brakes defect wordings, 2019–2024 (30+ items each)
DVSA defect wording	Items	Per 100 tests
Brake pipe damaged or excessively corroded	2,478	2.39
a brake lining or pad worn below 1.5mm	2,246	2.17
Significant brake effort recorded with no brake applied indicating a binding brake	736	0.71
Brake disc or drum significantly and obviously worn	607	0.59
ESC MIL indicates a system malfunction	411	0.40

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 brakes advisory, how often does it fail next time?

10.7% of Toyota iQ MOTs with a brakes advisory were followed by a fail in the same group at the next MOT, typically 12 months and 4,029 miles later (19,724 advisories followed).

Source: DVSA MOT bulk data (OGL v3.0) · Window: 2019–2024 · n = 19,724 (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 brakes more than it should?

What exactly fails on brakes?

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

Related pages

Other pages for this model