Aston Martin DB9 MOT failures and reliability
In 2023 the Aston Martin DB9 took 4,379 MOT tests in Britain and passed 90% of them first time, above 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
- 4,379
- First-time pass rate
- 90%
- All cars
- 71%
What the DB9 fails on
Share of tests with at least one failure in each area, against the figure for all cars.
- Lights and electrics4.3% (all cars 11.3%)
- Visibility2.0% (all cars 4.8%)
- Brakes2.0% (all cars 6.8%)
- Exhaust and emissions1.7% (all cars 3.1%)
- Tyres1.5% (all cars 6.4%)
- Suspension1.2% (all cars 9.0%)
- Number plates and VIN0.4% (all cars 0.4%)
- Seat belts and airbags0.3% (all cars 1.0%)
Most common failure items
Share of tests on which each item was recorded.
- Position lamp: not working 1.5%
- Malfunction indicator lamp: inoperative or indicates a malfunction 1.3%
- Wipers: does not clear the windscreen effectively 1.1%
- Coil spring: fractured or broken 0.9%
- Headlamp aim: too low 0.7%
- Tyres, condition: has a cut in excess of the requirements deep enough to reach the ply or cords 0.6%
- Washers: not working 0.5%
- Headlamp aim: too high 0.5%
Most common advisories
- Tread depth: worn close to legal limit/worn on edge 7.1%
- Tyres, condition: slightly damaged/cracking or perishing 5.7%
- Brake pads: wearing thin 3.8%
- Brake discs: worn, pitted or scored, but not seriously weakened 2.2%
- Flexible brake hoses: has slight corrosion to ferrule 1.9%
- Rigid brake pipes: corroded, covered in grease or other material 1.9%
- Shock absorbers: has light misting of oil 1.9%
- Tyres, condition: has a cut but not deep enough to reach the ply or cords 0.9%
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 | 1,065 | 89% |
| 2006 | 601 | 88% |
| 2007 | 672 | 89% |
| 2008 | 466 | 91% |
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 |
|---|---|
| 7 years | 17,689 miles |
| 8 years | 20,726 miles |
| 9 years | 25,235 miles |
| 10 years | 26,828 miles |
| 13 years | 37,145 miles |
| 14 years | 35,784 miles |
| 15 years | 40,148 miles |
| 16 years | 40,994 miles |
| 17 years | 42,563 miles |
| 18 years | 45,133 miles |
| 19 years | 50,960 miles |
Check a particular DB9
Model figures tell you what to look out for. To see one car's own MOT history, mileage and tax, enter its registration.
Other Aston Martin models
- Aston Martin Vantage
- Aston Martin V8 Vantage
- Aston Martin DB11
- Aston Martin DB7
- Aston Martin Vanquish
- Aston Martin DBS
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.