Vauxhall Signum MOT failures and reliability
In 2023 the Vauxhall Signum took 1,650 MOT tests in Britain and passed 55% of them first time, below the national average of 71% for all cars. The figures below come from the DVSA's record of every test, so they show what testers actually found on these cars rather than what owners report.
- MOT tests in 2023
- 1,650
- First-time pass rate
- 55%
- All cars
- 71%
What the Signum fails on
Share of tests with at least one failure in each area, against the figure for all cars.
- Lights and electrics18.9% (all cars 11.3%)
- Suspension18.3% (all cars 9.0%)
- Brakes16.8% (all cars 6.8%)
- Tyres10.4% (all cars 6.4%)
- Body and structure10.1% (all cars 3.5%)
- Exhaust and emissions8.2% (all cars 3.1%)
- Visibility7.4% (all cars 4.8%)
- Steering1.5% (all cars 1.8%)
Most common failure items
Share of tests on which each item was recorded.
- Coil spring: fractured or broken 7.0%
- Joints: constant velocity boot split or insecure, no longer prevents the ingress of dirt 5.8%
- Headlamp aim: projected beam image is obviously incorrect 4.7%
- Rigid brake pipes: excessively corroded 3.8%
- Rbt (sp): efficiency below requirements 3.6%
- Position lamp: not working 3.6%
- Tread depth: tread depth below requirements of 1.6mm 3.6%
- Brake pads: less than 1.5 mm thick 3.5%
Most common advisories
- Tread depth: worn close to legal limit/worn on edge 24.1%
- Rigid brake pipes: corroded, covered in grease or other material 17.6%
- Brake discs: worn, pitted or scored, but not seriously weakened 15.2%
- Engine oil leaks: leak, but not excessive 12.1%
- Brake pads: wearing thin 9.9%
- Coil spring: corroded 9.2%
- Exhaust system: has a minor leak of exhaust gases 8.9%
- Exhaust system: mounting defective 8.3%
Pass rate by year of registration
Older cars fail more often whatever the model, so compare a car with others of the same age.
| First registered | Tests | Pass rate |
|---|---|---|
| 2005 | 326 | 55% |
| 2006 | 600 | 56% |
| 2007 | 393 | 53% |
Typical mileage by age
Average odometer reading at the MOT, by the car's age in years at the test.
| Age at test | Average mileage |
|---|---|
| 16 years | 124,600 miles |
| 17 years | 122,489 miles |
| 18 years | 122,269 miles |
| 19 years | 116,097 miles |
Check a particular Signum
Model figures tell you what to look out for. To see one car's own MOT history, mileage and tax, enter its registration.
Other Vauxhall models
- Vauxhall Corsa
- Vauxhall Astra
- Vauxhall Zafira
- Vauxhall Mokka
- Vauxhall Insignia
- Vauxhall Vivaro
- Vauxhall Combo
- Vauxhall Meriva
- Vauxhall Adam
- Vauxhall Grandland
- Vauxhall Crossland
- Vauxhall Vectra
- Vauxhall Viva
- Vauxhall Agila
- Vauxhall Antara
- Vauxhall Astravan
- Vauxhall Tigra
- Vauxhall Movano
- Vauxhall Corsavan
- Vauxhall Cascada
- Vauxhall Omega
- Vauxhall Cavalier
- Vauxhall Ampera
Source: Department for Transport, Anonymised MOT tests and results, 2023, cars and light vans, normal tests only. Pass rates are first-time passes; a pass after repair at the test station counts as a fail. Contains public sector information licensed under the Open Government Licence v3.0.