Does the Mazda 6 fail the MOT on body, chassis and structure more than it should?
The Mazda 6 records 3.46 body, chassis and structure failure items per 100 initial MOT tests (2019–2024), against 5.08 expected for a car of the same age mix: less than expected for its class and age (−1.62, 95% interval −1.69 to −1.56). It ranks 431 of 663 models on body, chassis and structure (1 = most failures above expected).
Data release dvsa-2024-v2 (24 Sep 2026) · page updated 30 Sep 2026 · all models on body, chassis and structure · check a Mazda 6 by registration
What exactly fails on body, chassis and structure?
The most frequent DVSA defect wording in this group on the Mazda 6 is “Vehicle structure corroded to the extent that the rigidity of the assembly is seriously reduced”, recorded 2,838 times in 2019–2024.
| DVSA defect wording | Items | Per 100 tests |
|---|---|---|
| Vehicle structure corroded to the extent that the rigidity of the assembly is seriously reduced | 2,838 | 0.66 |
| Exhaust system leaking or insecure | 2,750 | 0.63 |
| Body, cab or chassis excessively corroded at a mounting point | 2,529 | 0.58 |
| A transmission shaft constant velocity joint boot severely deteriorated | 1,571 | 0.36 |
| A transmission shaft constant velocity joint boot missing or no longer prevents the ingress of dirt etc | 1,269 | 0.29 |
Source: DVSA MOT bulk data (OGL v3.0) · Window: 2019–2024 · n = 433,186 (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 6 gets a body, chassis and structure advisory, how often does it fail next time?
11.0% of Mazda 6 MOTs with a body, chassis and structure advisory were followed by a fail in the same group at the next MOT, typically 12 months and 5,352 miles later (11,909 advisories followed).
Source: DVSA MOT bulk data (OGL v3.0) · Window: 2019–2024 · n = 11,909 (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
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