2012 Mini One Auto — MOT failures & pass rate
Across 1,930 MOT tests analysed for the 2012 Mini One Auto, the most common recorded failure areas were lighting & signalling, tyres and visibility. Its pass rate of 86.1% was above the average for cars of a similar age (79.4%). Higher-mileage examples failed more often — 22.4% in the 90-120k group versus 7.5% in the 0-30k group.
How it compares
Top failure categories
| # | Category | % of tests affected | Tests |
|---|---|---|---|
| 1 | Lighting & signalling | 9.6% | 186 |
| 2 | Tyres | 5.7% | 109 |
| 3 | Visibility | 5.4% | 105 |
| 4 | Brakes | 2.6% | 50 |
| 5 | Emissions & environmental | 2.4% | 47 |
| 6 | Suspension | 1.6% | 31 |
Most common specific failures
The exact components most often recorded as failures — more specific than the categories above.
| # | Failure item | Times recorded |
|---|---|---|
| 1 | Headlamp aim | 92 |
| 2 | Wipers | 63 |
| 3 | Position lamp | 59 |
| 4 | Washers | 53 |
| 5 | Malfunction indicator lamp | 36 |
| 6 | Tread depth | 35 |
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 | 25.7% | 496 |
| 2 | Brakes | 15.8% | 304 |
| 3 | Lighting & signalling | 10.1% | 194 |
| 4 | Other defects | 9.4% | 181 |
| 5 | Suspension | 9.1% | 175 |
| 6 | Visibility | 5.9% | 113 |
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 | 280 | 7.5% |
| 30-60k | 902 | 12.2% |
| 60-90k | 579 | 17.1% |
| 90-120k | 143 | 22.4% |
Failure rate by age
Trend over time
| Dataset year | Tests | Fail rate |
|---|---|---|
| 2021 | 374 | 11.2% |
| 2022 | 401 | 15.5% |
| 2023 | 398 | 15.1% |
| 2024 | 389 | 14.6% |
| 2025 | 368 | 12.8% |
What to check before buying a 2012 One Auto
Before buying a 2012 Mini One Auto, focus on the areas it most often fails on. Lighting & signalling accounted for 9.6% of tests for this year.
- Lighting & signalling (9.6% of tests): Often a cheap bulb, but persistent issues can mean wiring or corrosion in the units. Typical repair: £10–£150.
- Tyres (5.7% 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.
- Visibility (5.4% 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 2012 Mini One Autos pass their MOT?
86.1% of the 1,930 2012 Mini One Auto MOT tests in this dataset passed — a 13.9% fail rate.
What is the most common MOT failure on a 2012 Mini One Auto?
Lighting & signalling, recorded in 9.6% of tests, followed by tyres (5.7%).
Does the 2012 One Auto get worse with mileage?
Its MOT fail rate rises from 7.5% in the 0-30k band to 22.4% in the 90-120k band.
Methodology & source. Based on 1,930 MOT tests. Dataset: DVSA MOT testing data (2021,2022,2023,2024,2025). Data last updated 2026-07-01. Figures reflect MOT-testable defects only — read the methodology for how these are calculated and what they don't measure.