Chester MOT pass rate
At 76.2%, Cars tested in Chester, age-adjusted, passes slightly less often than the national average (79.2%).
76.5%
Raw pass rate
76.2%
Age-adjusted pass rate
-3.0 pts
vs national average
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“At 76.2%, Cars tested in Chester, age-adjusted, passes slightly less often than the national average (79.2%).”
76.5% of 559,430 MOT tests carried out in Chester pass — the age-adjusted figure is 76.2%.
Pass rate by vehicle age in Chester
| Vehicle age | Pass rate | Tests |
|---|---|---|
| 0–3 years | 92.4% | 28,767 |
| 3–6 years | 89.4% | 114,698 |
| 6–10 years | 80.5% | 173,679 |
| 10–15 years | 68.6% | 147,971 |
| 15+ years | 61.2% | 94,315 |
Most common MOT failure reasons in Chester
| Category | Share of failed tests |
|---|---|
| Lamps, reflectors and electrical equipment | 46.3% |
| Suspension | 40.0% |
| Brakes | 33.5% |
| Tyres | 24.9% |
| Body, chassis, structure | 15.0% |
Methodology and data source
- Source: DVSA “Anonymised MOT tests and results”, data.gov.uk, under the Open Government Licence v3.0.
- Coverage: Full year 2024, test class 4 (cars), normal (initial) tests only.
- This covers cars tested in Chester (DVSA's postcode_area field is the testing station's location, not the vehicle owner's home address).
- The age-adjusted figure is standardised to the national vehicle-age mix, so it isn't just reflecting whether this area's tested fleet happens to run older or newer than average.
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Frequently asked questions
- What is the MOT pass rate in Chester?
- 76.5% of MOT tests carried out in Chester pass, based on 559,430 tests. Adjusted for the age of cars tested there, the figure is 76.2%.
- Does this show cars registered in Chester, or tested there?
- Tested there. DVSA's data records the postcode of the testing station, not the vehicle owner's home address, so this reflects cars tested in Chester — which may include vehicles from further afield — not necessarily cars kept locally.
- What's the most common MOT failure reason in Chester?
- Lamps, reflectors and electrical equipment is the most common failure category among tests carried out in Chester, present in 46.3% of failed tests there.