Open data · 2022 to 2024
UK MOT data hub
The average car in Great Britain fails 28.4% of first MOT tests, rising from 12.3% at age 3 to 43.5% for older cars. Our index covers 104.9 million MOT tests from 2022 to 2024.
By age
How MOT fail rates rise with age
| Age at MOT (years) | All cars |
|---|---|
| 3 | 12.3% |
| 4 | 14.1% |
| 5 | 16.4% |
| 6 | 19.1% |
| 7 | 22.1% |
| 8 | 25.5% |
| 9 | 28.8% |
| 10 | 31.8% |
| 11 | 34.6% |
| 12 | 37.3% |
| 13 | 39.5% |
| 14 | 41.1% |
| 15 | 42.3% |
| 16 | 42.9% |
| 17 | 43.4% |
| 18 | 43.5% |
| 19 | 43.4% |
| 20 | 42.8% |
| 21 | 41.4% |
| 22 | 40.6% |
| 23 | 38.9% |
| 24 | 37.1% |
| 25 | 35.8% |
By area
What fails MOTs
- Lights and electrics9.9%
- Suspension7.9%
- Brakes5.9%
- Tyres5.5%
- Windscreen, wipers and mirrors4.1%
- Body, chassis and structure3%
- Exhaust, emissions and leaks2.7%
- Steering1.6%
- Seat belts and airbags0.9%
- Wheels0.3%
Fuel
Fail rate by fuel
| Other | 18.1% |
|---|---|
| Petrol | 28.3% |
| Hybrid | 15% |
| Diesel | 29.4% |
| Electric | 15.9% |
104,887,872 tests · models need 5,000+ tests, model years 1,000+ · methodology · the ranking. Free to quote with a link to the page you used. Source: DVSA anonymised MOT test results, Open Government Licence v3.0.
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