Slough MOT pass rate
Cars tested in Slough, age-adjusted, passes its MOT 85.7% of the time — well above the national average, which sits at 79.2%.
85.4%
Raw pass rate
85.7%
Age-adjusted pass rate
+6.5 pts
vs national average
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“Cars tested in Slough, age-adjusted, passes its MOT 85.7% of the time — well above the national average, which sits at 79.2%.”
85.4% of 330,745 MOT tests carried out in Slough pass — the age-adjusted figure is 85.7%.
Pass rate by vehicle age in Slough
| Vehicle age | Pass rate | Tests |
|---|---|---|
| 0–3 years | 92.6% | 15,324 |
| 3–6 years | 92.1% | 64,844 |
| 6–10 years | 88.6% | 96,775 |
| 10–15 years | 82.0% | 83,664 |
| 15+ years | 77.5% | 70,138 |
Most common MOT failure reasons in Slough
| Category | Share of failed tests |
|---|---|
| Lamps, reflectors and electrical equipment | 56.0% |
| Tyres | 25.7% |
| Suspension | 25.4% |
| Brakes | 21.9% |
| Visibility | 15.5% |
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 Slough (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 Slough?
- 85.4% of MOT tests carried out in Slough pass, based on 330,745 tests. Adjusted for the age of cars tested there, the figure is 85.7%.
- Does this show cars registered in Slough, 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 Slough — which may include vehicles from further afield — not necessarily cars kept locally.
- What's the most common MOT failure reason in Slough?
- Lamps, reflectors and electrical equipment is the most common failure category among tests carried out in Slough, present in 56.0% of failed tests there.