Does the Daihatsu Copen fail the MOT on brakes more than it should?
The Daihatsu Copen records 9.88 brakes failure items per 100 initial MOT tests (2019–2024), against 21.32 expected for a car of the same age mix: less than expected for its class and age (−11.44, 95% interval −12.41 to −10.46). It ranks 673 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 Daihatsu Copen by registration
What exactly fails on brakes?
The most frequent DVSA defect wording in this group on the Daihatsu Copen is “Brake pipe damaged or excessively corroded”, recorded 264 times in 2019–2024.
| DVSA defect wording | Items | Per 100 tests |
|---|---|---|
| Brake pipe damaged or excessively corroded | 264 | 3.06 |
| Significant brake effort recorded with no brake applied indicating a binding brake | 115 | 1.33 |
| 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. | 60 | 0.70 |
| A brake hose ferrule excessively corroded | 55 | 0.64 |
| Brake disc or drum significantly and obviously worn | 53 | 0.61 |
Source: DVSA MOT bulk data (OGL v3.0) · Window: 2019–2024 · n = 8,632 (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 Daihatsu Copen gets a brakes advisory, how often does it fail next time?
10.2% of Daihatsu Copen MOTs with a brakes advisory were followed by a fail in the same group at the next MOT, typically 12.1 months and 1,908 miles later (1,662 advisories followed).
Source: DVSA MOT bulk data (OGL v3.0) · Window: 2019–2024 · n = 1,662 (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
Daihatsu Copen by postcode area · Daihatsu Copen body, chassis and structure failures · Daihatsu Copen vehicle identification failures · Daihatsu Copen lamps, reflectors and electrics failures · Daihatsu Copen noise, emissions and leaks failures · Daihatsu Copen seat belts and airbags failures · Daihatsu Copen steering failures · Daihatsu Copen suspension failures · Daihatsu Copen tyres failures · Daihatsu Copen visibility failures