2014 MINI One — MOT failures & pass rate
35,471 MOT tests on the 2014 MINI One are in this dataset, and 87.5% of them passed. Superminis of a similar age fail 19.4% of the time, so this is 7.0pp better than the group it competes with. Failures cluster in tyres, lighting & signalling and visibility.
What the MOT record shows
No single area dominates — tyres (5.5%) and lighting & signalling (5.0%) are close, so failures are spread across several systems rather than one weak point.
At component level the recurring items are wipers, headlamp aim and brake pads — wipers alone was recorded 1,392 times.
Condition tracks the odometer closely. Failures run at 8.1% in the 0-30k band and 19.1% in the 150k+ band, a 10.9-point spread — more than double.
The petrol cars hold up better: 11.8% fail against 14.4% for diesel, a 2.7-point gap across 35,471 tests.
Tyres is the most common advisory, noted on 26.5% of tests — work that passed today but is likely due soon.
The trend is worsening — 11.7% of tests failed in 2021 against 13.7% in 2025, the usual pattern as a fleet ages.
How it compares
Top failure categories
| # | Category | % of tests affected | Tests |
|---|---|---|---|
| 1 | Tyres | 5.5% | 1,944 |
| 2 | Lighting & signalling | 5.0% | 1,755 |
| 3 | Visibility | 4.8% | 1,712 |
| 4 | Brakes | 3.0% | 1,066 |
| 5 | Suspension | 1.7% | 604 |
| 6 | Emissions & environmental | 1.4% | 487 |
Most common specific failures
The exact components most often recorded as failures — more specific than the categories above.
| # | Failure item | Times recorded |
|---|---|---|
| 1 | Wipers | 1,392 |
| 2 | Headlamp aim | 941 |
| 3 | Brake pads | 725 |
| 4 | Tread depth | 721 |
| 5 | Washers | 622 |
| 6 | Position lamp | 499 |
Top advisory categories
Advisories aren't failures, but they flag work likely needed soon — useful when budgeting.
| # | Category | % of tests with advisory | Tests |
|---|---|---|---|
| 1 | Tyres | 26.5% | 9,405 |
| 2 | Brakes | 15.7% | 5,555 |
| 3 | Suspension | 6.2% | 2,212 |
| 4 | Other defects | 5.4% | 1,930 |
| 5 | Visibility | 4.9% | 1,719 |
| 6 | Lighting & signalling | 2.8% | 979 |
Failure rate by mileage
Higher-mileage cars tend to fail more — often the most useful guide to real condition.
| Mileage band | Tests | Fail rate |
|---|---|---|
| 0-30k | 4,019 | 8.1% |
| 30-60k | 15,552 | 11.0% |
| 60-90k | 11,545 | 13.9% |
| 90-120k | 3,548 | 17.5% |
| 120-150k | 675 | 18.8% |
| 150k+ | 131 | 19.1% |
Failure rate by age
By fuel type
| Fuel | Tests | Fail rate |
|---|---|---|
| Petrol | 26,400 | 11.8% |
| Diesel | 9,071 | 14.4% |
Trend over time
| Dataset year | Tests | Fail rate |
|---|---|---|
| 2021 | 7,126 | 11.7% |
| 2022 | 7,121 | 12.0% |
| 2023 | 7,097 | 11.9% |
| 2024 | 7,070 | 13.0% |
| 2025 | 7,057 | 13.7% |
What to check before buying a 2014 One
The failure pattern for this year is specific enough to inspect against: tyres accounted for 5.5% of tests. Start there.
- Tyres (5.5% of tests): Usually a quick, known-cost fix, but check tread, age and uneven wear (which can hint at alignment or suspension issues). Typical repair: £50–£120 per tyre.
- Lighting & signalling (5.0% of tests): Often a cheap bulb, but persistent issues can mean wiring or corrosion in the units. Typical repair: £10–£150.
- Visibility (4.8% of tests): Wipers, washers, mirrors and screen damage — usually inexpensive, but check for chips in the driver's line of sight. Typical repair: £15–£150.
Repair costs are rough UK ballpark ranges to set expectations, not quotes — actual prices vary widely by car, parts and garage.
Frequently asked questions
How many 2014 MINI Ones pass their MOT?
87.5% of the 35,471 2014 MINI One MOT tests in this dataset passed — a 12.5% fail rate.
What is the most common MOT failure on a 2014 MINI One?
Tyres, recorded in 5.5% of tests, followed by lighting & signalling (5.0%).
Does the 2014 One get worse with mileage?
Its MOT fail rate rises from 8.1% in the 0-30k band to 19.1% in the 150k+ band.
Methodology & source. Based on 35,471 MOT tests. Dataset: DVSA MOT testing data (2021,2022,2023,2024,2025). Data last updated 2026-07-27. Figures reflect MOT-testable defects only — read the methodology for how these are calculated and what they don't measure.