Does the Mazda CX-30 fail the MOT on brakes more than it should?
The Mazda CX-30 records 1.60 brakes failure items per 100 initial MOT tests (2019–2024), against 2.40 expected for a car of the same age mix: less than expected for its class and age (−0.80, 95% interval −1.00 to −0.59). It ranks 378 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 Mazda CX-30 by registration
What exactly fails on brakes?
The most frequent DVSA defect wording in this group on the Mazda CX-30 is “a brake lining or pad worn below 1.5mm”, recorded 187 times in 2019–2024.
| DVSA defect wording | Items | Per 100 tests |
|---|---|---|
| a brake lining or pad worn below 1.5mm | 187 | 0.85 |
| Brake disc or drum significantly and obviously worn | 49 | 0.22 |
Source: DVSA MOT bulk data (OGL v3.0) · Window: 2019–2024 · n = 22,108 (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 Mazda CX-30 gets a brakes advisory, how often does it fail next time?
3.1% of Mazda CX-30 MOTs with a brakes advisory were followed by a fail in the same group at the next MOT, typically 11.8 months and 5,430 miles later (1,020 advisories followed).
Source: DVSA MOT bulk data (OGL v3.0) · Window: 2019–2024 · n = 1,020 (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
Mazda CX-30 2019 · Mazda CX-30 2020 · Mazda CX-30 in Norway · Mazda CX-30 in the Netherlands · Mazda CX-30 by postcode area · Mazda CX-30 lamps, reflectors and electrics failures · Mazda CX-30 noise, emissions and leaks failures · Mazda CX-30 suspension failures · Mazda CX-30 tyres failures · Mazda CX-30 visibility failures