Does the Mazda Demio fail the MOT on brakes more than it should?
The Mazda Demio records 16.61 brakes failure items per 100 initial MOT tests (2019–2024), against 24.63 expected for a car of the same age mix: less than expected for its class and age (−8.02, 95% interval −9.19 to −6.85). It ranks 627 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 Demio by registration
What exactly fails on brakes?
The most frequent DVSA defect wording in this group on the Mazda Demio is “Brake pipe damaged or excessively corroded”, recorded 282 times in 2019–2024.
| DVSA defect wording | Items | Per 100 tests |
|---|---|---|
| Brake pipe damaged or excessively corroded | 282 | 4.07 |
| Significant brake effort recorded with no brake applied indicating a binding brake | 199 | 2.87 |
| a brake lining or pad worn below 1.5mm | 115 | 1.66 |
| Brakes imbalance across an axle such that the braking effort from any wheel is less than 70% of the maximum effort recorded from the other wheel on the same axle. | 76 | 1.10 |
| A brake hose ferrule excessively corroded | 69 | 1.00 |
Source: DVSA MOT bulk data (OGL v3.0) · Window: 2019–2024 · n = 6,922 (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 Demio gets a brakes advisory, how often does it fail next time?
15.9% of Mazda Demio MOTs with a brakes advisory were followed by a fail in the same group at the next MOT, typically 12.1 months and 2,824 miles later (1,167 advisories followed).
Source: DVSA MOT bulk data (OGL v3.0) · Window: 2019–2024 · n = 1,167 (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 Demio 2002 · Mazda Demio 2003 · Mazda Demio in the Netherlands · Mazda Demio by postcode area · Mazda Demio body, chassis and structure failures · Mazda Demio vehicle identification failures · Mazda Demio lamps, reflectors and electrics failures · Mazda Demio noise, emissions and leaks failures · Mazda Demio seat belts and airbags failures · Mazda Demio steering failures · Mazda Demio suspension failures · Mazda Demio tyres failures · Mazda Demio visibility failures