Harrow MOT pass rate
Cars tested in Harrow, age-adjusted, passes its MOT 87.0% of the time — well above the national average, which sits at 79.2%.
87.1%
Raw pass rate
87.0%
Age-adjusted pass rate
+7.8 pts
vs national average
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“Cars tested in Harrow, age-adjusted, passes its MOT 87.0% of the time — well above the national average, which sits at 79.2%.”
87.1% of 290,054 MOT tests carried out in Harrow pass — the age-adjusted figure is 87.0%.
Pass rate by vehicle age in Harrow
| Vehicle age | Pass rate | Tests |
|---|---|---|
| 0–3 years | 93.2% | 12,129 |
| 3–6 years | 92.5% | 60,704 |
| 6–10 years | 89.6% | 93,152 |
| 10–15 years | 83.5% | 64,309 |
| 15+ years | 80.3% | 59,760 |
Most common MOT failure reasons in Harrow
| Category | Share of failed tests |
|---|---|
| Lamps, reflectors and electrical equipment | 60.6% |
| Tyres | 28.0% |
| Brakes | 22.2% |
| Suspension | 21.7% |
| Visibility | 18.5% |
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 Harrow (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 Harrow?
- 87.1% of MOT tests carried out in Harrow pass, based on 290,054 tests. Adjusted for the age of cars tested there, the figure is 87.0%.
- Does this show cars registered in Harrow, 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 Harrow — which may include vehicles from further afield — not necessarily cars kept locally.
- What's the most common MOT failure reason in Harrow?
- Lamps, reflectors and electrical equipment is the most common failure category among tests carried out in Harrow, present in 60.6% of failed tests there.