Northampton MOT pass rate
At 77.0%, Cars tested in Northampton, age-adjusted, passes slightly less often than the national average (79.2%).
77.3%
Raw pass rate
77.0%
Age-adjusted pass rate
-2.2 pts
vs national average
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“At 77.0%, Cars tested in Northampton, age-adjusted, passes slightly less often than the national average (79.2%).”
77.3% of 628,586 MOT tests carried out in Northampton pass — the age-adjusted figure is 77.0%.
Pass rate by vehicle age in Northampton
| Vehicle age | Pass rate | Tests |
|---|---|---|
| 0–3 years | 91.0% | 30,906 |
| 3–6 years | 87.6% | 139,608 |
| 6–10 years | 80.8% | 183,979 |
| 10–15 years | 70.0% | 159,196 |
| 15+ years | 65.5% | 114,897 |
Most common MOT failure reasons in Northampton
| Category | Share of failed tests |
|---|---|
| Lamps, reflectors and electrical equipment | 53.9% |
| Suspension | 37.2% |
| Brakes | 30.3% |
| Tyres | 26.1% |
| Visibility | 15.9% |
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 Northampton (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 Northampton?
- 77.3% of MOT tests carried out in Northampton pass, based on 628,586 tests. Adjusted for the age of cars tested there, the figure is 77.0%.
- Does this show cars registered in Northampton, 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 Northampton — which may include vehicles from further afield — not necessarily cars kept locally.
- What's the most common MOT failure reason in Northampton?
- Lamps, reflectors and electrical equipment is the most common failure category among tests carried out in Northampton, present in 53.9% of failed tests there.