Does the Vauxhall Signum fail the MOT on body, chassis and structure more than it should?
The Vauxhall Signum records 18.33 body, chassis and structure failure items per 100 initial MOT tests (2019–2024), against 12.42 expected for a car of the same age mix: more than expected for its class and age (+5.91, 95% interval +5.27 to +6.55). It ranks 85 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 Vauxhall Signum by registration
What exactly fails on body, chassis and structure?
The most frequent DVSA defect wording in this group on the Vauxhall Signum is “A transmission shaft constant velocity joint boot missing or no longer prevents the ingress of dirt etc”, recorded 1,062 times in 2019–2024.
| DVSA defect wording | Items | Per 100 tests |
|---|---|---|
| A transmission shaft constant velocity joint boot missing or no longer prevents the ingress of dirt etc | 1,062 | 6.24 |
| A transmission shaft constant velocity joint boot severely deteriorated | 850 | 4.99 |
| Exhaust system leaking or insecure | 799 | 4.69 |
| Fuel system leaking excessively or a risk of fire | 75 | 0.44 |
| Fuel system leaking, or missing or ineffective filler cap | 67 | 0.39 |
Source: DVSA MOT bulk data (OGL v3.0) · Window: 2019–2024 · n = 17,028 (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 Vauxhall Signum gets a body, chassis and structure advisory, how often does it fail next time?
18.7% of Vauxhall Signum MOTs with a body, chassis and structure advisory were followed by a fail in the same group at the next MOT, typically 12.1 months and 5,382 miles later (1,628 advisories followed).
Source: DVSA MOT bulk data (OGL v3.0) · Window: 2019–2024 · n = 1,628 (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
Vauxhall Signum 2003 · Vauxhall Signum 2004 · Vauxhall Signum 2005 · Vauxhall Signum 2006 · Vauxhall Signum 2007 · Vauxhall Signum by postcode area · Vauxhall Signum brakes failures · Vauxhall Signum vehicle identification failures · Vauxhall Signum lamps, reflectors and electrics failures · Vauxhall Signum noise, emissions and leaks failures · Vauxhall Signum road wheels failures · Vauxhall Signum seat belts and airbags failures · Vauxhall Signum steering failures · Vauxhall Signum suspension failures · Vauxhall Signum tyres failures · Vauxhall Signum visibility failures