2012 MINI Mini (R57) — MOT failures & pass rate
The 2012 MINI Mini (R57) passed 81.9% of its 3,106 recorded MOT tests. All cars of a similar age fail 21.7% of the time, so this is 3.6pp better than the group it competes with. Failures cluster in lighting & signalling, tyres and suspension.
What the MOT record shows
One area stands out: lighting & signalling, recorded in 11.9% of tests against 6.2% for the next-worst category.
At component level the recurring items are position lamp, headlamp aim and tread depth — position lamp alone was recorded 188 times.
A 150k+ example is materially riskier than a 0-30k one: 21.7% versus 9.6%.
Fuel type barely separates them — petrol fails 17.0% of the time against 18.4% for diesel.
Tyres is the most common advisory, noted on 25.8% of tests — work that passed today but is likely due soon.
The trend is worsening — 15.7% of tests failed in 2021 against 20.7% in 2025, the usual pattern as a fleet ages.
How it compares
Top failure categories
| # | Category | % of tests affected | Tests |
|---|---|---|---|
| 1 | Lighting & signalling | 11.9% | 370 |
| 2 | Tyres | 6.2% | 193 |
| 3 | Suspension | 4.9% | 151 |
| 4 | Visibility | 4.5% | 141 |
| 5 | Brakes | 4.2% | 129 |
| 6 | Body, structure & corrosion | 1.1% | 33 |
Most common specific failures
The exact components most often recorded as failures — more specific than the categories above.
| # | Failure item | Times recorded |
|---|---|---|
| 1 | Position lamp | 188 |
| 2 | Headlamp aim | 106 |
| 3 | Tread depth | 87 |
| 4 | Wipers | 81 |
| 5 | Shock absorbers | 76 |
| 6 | Washers | 72 |
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 | 25.8% | 802 |
| 2 | Brakes | 21.6% | 672 |
| 3 | Suspension | 16.9% | 526 |
| 4 | Lighting & signalling | 10.5% | 327 |
| 5 | Other defects | 7.1% | 222 |
| 6 | Visibility | 6.1% | 189 |
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 | 83 | 9.6% |
| 30-60k | 854 | 13.7% |
| 60-90k | 1,162 | 17.6% |
| 90-120k | 728 | 23.2% |
| 120-150k | 233 | 23.2% |
| 150k+ | 46 | 21.7% |
Failure rate by age
By fuel type
| Fuel | Tests | Fail rate |
|---|---|---|
| Diesel | 2,428 | 18.4% |
| Petrol | 678 | 17.0% |
Trend over time
| Dataset year | Tests | Fail rate |
|---|---|---|
| 2021 | 626 | 15.7% |
| 2022 | 640 | 18.8% |
| 2023 | 624 | 17.9% |
| 2024 | 617 | 17.5% |
| 2025 | 599 | 20.7% |
What to check before buying a 2012 Mini (R57)
The failure pattern for this year is specific enough to inspect against: lighting & signalling accounted for 11.9% of tests. Start there.
- Lighting & signalling (11.9% of tests): Often a cheap bulb, but persistent issues can mean wiring or corrosion in the units. Typical repair: £10–£150.
- Tyres (6.2% 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.
- Suspension (4.9% of tests): Worn drop links, bushes, springs or shocks — listen for knocks over bumps and check for uneven tyre wear. Typical repair: £150–£450 per corner.
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 Mini (R57)s pass their MOT?
81.9% of the 3,106 2012 MINI Mini (R57) MOT tests in this dataset passed — a 18.1% fail rate.
What is the most common MOT failure on a 2012 MINI Mini (R57)?
Lighting & signalling, recorded in 11.9% of tests, followed by tyres (6.2%).
Does the 2012 Mini (R57) get worse with mileage?
Its MOT fail rate rises from 9.6% in the 0-30k band to 21.7% in the 150k+ band.
Methodology & source. Based on 3,106 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.