Daihatsu Sirion MOT failures and reliability
In 2023 the Daihatsu Sirion took 6,888 MOT tests in Britain and passed 63% 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
- 6,888
- First-time pass rate
- 63%
- All cars
- 71%
What the Sirion fails on
Share of tests with at least one failure in each area, against the figure for all cars.
- Suspension15.7% (all cars 9.0%)
- Lights and electrics14.4% (all cars 11.3%)
- Brakes9.7% (all cars 6.8%)
- Visibility6.5% (all cars 4.8%)
- Body and structure5.9% (all cars 3.5%)
- Tyres5.3% (all cars 6.4%)
- Exhaust and emissions4.5% (all cars 3.1%)
- Steering2.8% (all cars 1.8%)
Most common failure items
Share of tests on which each item was recorded.
- Suspension arms, ball joint: ball joint excessively worn 7.1%
- Wipers: does not clear the windscreen effectively 4.0%
- Position lamp: not working 3.6%
- Stop lamp: not working 3.4%
- Rigid brake pipes: excessively corroded 2.9%
- Linkage ball joints: ball joint excessively worn 2.8%
- Component mounting prescribed areas: prescribed area excessively corroded significantly reducing structural strength 2.8%
- Headlamp aim: projected beam image is obviously incorrect 2.4%
Most common advisories
- Rigid brake pipes: corroded, covered in grease or other material 15.8%
- Tread depth: worn close to legal limit/worn on edge 14.3%
- Tyres, condition: slightly damaged/cracking or perishing 12.3%
- Brake discs: worn, pitted or scored, but not seriously weakened 8.5%
- Linkage ball joints: ball joint has slight play 6.7%
- Suspension arms, ball joint: ball joint has slight play 6.6%
- Suspension arm: corroded but not seriously weakened 5.6%
- Brake pads: wearing thin 5.4%
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 | 817 | 60% |
| 2006 | 825 | 60% |
| 2007 | 1,527 | 63% |
| 2008 | 1,994 | 64% |
| 2009 | 959 | 69% |
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 |
|---|---|
| 13 years | 62,813 miles |
| 14 years | 65,915 miles |
| 15 years | 68,451 miles |
| 16 years | 71,292 miles |
| 17 years | 75,550 miles |
| 18 years | 76,373 miles |
| 19 years | 68,900 miles |
| 20 years | 68,779 miles |
Check a particular Sirion
Model figures tell you what to look out for. To see one car's own MOT history, mileage and tax, enter its registration.
Other Daihatsu models
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.