2015 Mini Challenge — MOT failures & pass rate
Across 1,107 MOT tests analysed for the 2015 Mini Challenge, the most common recorded failure areas were tyres, brakes and visibility. Its pass rate of 88.3% was above the average for cars of a similar age (84.3%). Higher-mileage examples failed more often — 17.2% in the 90-120k group versus 9.6% in the 0-30k group.
How it compares
Top failure categories
| # | Category | % of tests affected | Tests |
|---|---|---|---|
| 1 | Tyres | 7.0% | 78 |
| 2 | Brakes | 2.1% | 23 |
| 3 | Visibility | 1.8% | 20 |
| 4 | Lighting & signalling | 1.5% | 17 |
| 5 | Emissions & environmental | 1.4% | 15 |
| 6 | Suspension | 1.4% | 15 |
Most common specific failures
The exact components most often recorded as failures — more specific than the categories above.
| # | Failure item | Times recorded |
|---|---|---|
| 1 | Wipers | 17 |
| 2 | Brake pads | 11 |
| 3 | Tread depth | 10 |
| 4 | Brake discs | 10 |
| 5 | Headlamp aim | 9 |
| 6 | Catalyst emissions | 8 |
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 | 16.8% | 186 |
| 2 | Brakes | 10.1% | 112 |
| 3 | Suspension | 6.0% | 67 |
| 4 | Visibility | 5.5% | 61 |
| 5 | Road wheels | 3.8% | 42 |
| 6 | Other defects | 2.4% | 27 |
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 | 135 | 9.6% |
| 30-60k | 616 | 12.5% |
| 60-90k | 289 | 9.7% |
| 90-120k | 64 | 17.2% |
Failure rate by age
Trend over time
| Dataset year | Tests | Fail rate |
|---|---|---|
| 2021 | 238 | 13.9% |
| 2022 | 223 | 9.9% |
| 2023 | 211 | 9.5% |
| 2024 | 224 | 14.7% |
| 2025 | 211 | 10.0% |
What to check before buying a 2015 Challenge
Before buying a 2015 Mini Challenge, focus on the areas it most often fails on. Tyres accounted for 7.0% of tests for this year.
- Tyres (7.0% 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.
- Brakes (2.1% 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.
- Visibility (1.8% 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 2015 Mini Challenges pass their MOT?
88.3% of the 1,107 2015 Mini Challenge MOT tests in this dataset passed — a 11.7% fail rate.
What is the most common MOT failure on a 2015 Mini Challenge?
Tyres, recorded in 7.0% of tests, followed by brakes (2.1%).
Does the 2015 Challenge get worse with mileage?
Its MOT fail rate rises from 9.6% in the 0-30k band to 17.2% in the 90-120k band.
Methodology & source. Based on 1,107 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.