2005 MINI One — MOT failures & pass rate
1,553 MOT tests on the 2005 MINI One are in this dataset, and 69.5% of them passed. That is 1.5 percentage points worse than superminis of a similar age, which fail at 29.0%. Failures cluster in lighting & signalling, brakes and suspension.
What the MOT record shows
No single area dominates — lighting & signalling (16.5%) and brakes (13.7%) are close, so failures are spread across several systems rather than one weak point.
At component level the recurring items are headlamp aim, rigid brake pipes and pins and bushes — headlamp aim alone was recorded 131 times.
Mileage is the strongest signal on the record: 9.3% of 0-30k cars fail, rising to 38.3% once past 150k — 4.1× the risk.
Brakes is the most common advisory, noted on 48.9% of tests — work that passed today but is likely due soon.
The trend is improving — the fail rate fell from 30.9% in 2021 to 28.9% in 2025, as the worst-kept examples leave the fleet.
How it compares
Top failure categories
| # | Category | % of tests affected | Tests |
|---|---|---|---|
| 1 | Lighting & signalling | 16.5% | 256 |
| 2 | Brakes | 13.7% | 212 |
| 3 | Suspension | 12.8% | 198 |
| 4 | Body, structure & corrosion | 8.7% | 135 |
| 5 | Visibility | 6.3% | 97 |
| 6 | Steering | 6.2% | 96 |
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 | 131 |
| 2 | Rigid brake pipes | 127 |
| 3 | Pins and bushes | 111 |
| 4 | Track rod end | 84 |
| 5 | Position lamp | 83 |
| 6 | Service brake performance | 81 |
Top advisory categories
Advisories aren't failures, but they flag work likely needed soon — useful when budgeting.
| # | Category | % of tests with advisory | Tests |
|---|---|---|---|
| 1 | Brakes | 48.9% | 760 |
| 2 | Emissions & environmental | 33.4% | 519 |
| 3 | Suspension | 33.2% | 515 |
| 4 | Tyres | 28.6% | 445 |
| 5 | Lighting & signalling | 22.0% | 342 |
| 6 | Steering | 13.8% | 215 |
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 | 43 | 9.3% |
| 30-60k | 136 | 22.8% |
| 60-90k | 382 | 29.8% |
| 90-120k | 666 | 30.9% |
| 120-150k | 279 | 35.8% |
| 150k+ | 47 | 38.3% |
Failure rate by age
By fuel type
| Fuel | Tests | Fail rate |
|---|---|---|
| Petrol | 1,485 | 30.8% |
| Diesel | 68 | 22.1% |
Trend over time
| Dataset year | Tests | Fail rate |
|---|---|---|
| 2021 | 304 | 30.9% |
| 2022 | 364 | 33.8% |
| 2023 | 302 | 29.8% |
| 2024 | 313 | 28.1% |
| 2025 | 270 | 28.9% |
What to check before buying a 2005 One
The failure pattern for this year is specific enough to inspect against: lighting & signalling accounted for 16.5% of tests. Start there.
- Lighting & signalling (16.5% of tests): Often a cheap bulb, but persistent issues can mean wiring or corrosion in the units. Typical repair: £10–£150.
- Brakes (13.7% of tests): Pads/discs are routine wear; binding, imbalance or corroded pipes are more serious — test for pulling under braking. Typical repair: £100–£350 per axle.
- Suspension (12.8% 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 2005 MINI Ones pass their MOT?
69.5% of the 1,553 2005 MINI One MOT tests in this dataset passed — a 30.5% fail rate.
What is the most common MOT failure on a 2005 MINI One?
Lighting & signalling, recorded in 16.5% of tests, followed by brakes (13.7%).
Does the 2005 One get worse with mileage?
Its MOT fail rate rises from 9.3% in the 0-30k band to 38.3% in the 150k+ band.
Methodology & source. Based on 1,553 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.