Swansea MOT pass rate
At 76.2%, Cars tested in Swansea, age-adjusted, passes slightly less often than the national average (79.2%).
75.9%
Raw pass rate
76.2%
Age-adjusted pass rate
-3.1 pts
vs national average
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“At 76.2%, Cars tested in Swansea, age-adjusted, passes slightly less often than the national average (79.2%).”
75.9% of 716,233 MOT tests carried out in Swansea pass — the age-adjusted figure is 76.2%.
Pass rate by vehicle age in Swansea
| Vehicle age | Pass rate | Tests |
|---|---|---|
| 0–3 years | 92.5% | 32,152 |
| 3–6 years | 89.9% | 136,364 |
| 6–10 years | 81.1% | 222,838 |
| 10–15 years | 67.9% | 194,230 |
| 15+ years | 60.3% | 130,649 |
Most common MOT failure reasons in Swansea
| Category | Share of failed tests |
|---|---|
| Lamps, reflectors and electrical equipment | 50.3% |
| Suspension | 42.7% |
| Brakes | 37.5% |
| Tyres | 23.1% |
| Visibility | 14.4% |
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 Swansea (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 Swansea?
- 75.9% of MOT tests carried out in Swansea pass, based on 716,233 tests. Adjusted for the age of cars tested there, the figure is 76.2%.
- Does this show cars registered in Swansea, 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 Swansea — which may include vehicles from further afield — not necessarily cars kept locally.
- What's the most common MOT failure reason in Swansea?
- Lamps, reflectors and electrical equipment is the most common failure category among tests carried out in Swansea, present in 50.3% of failed tests there.