2015 MINI One MOT pass rate: 87.0% (30,910 tests)
Is the 2015 One getting worse?
Pass rate of 2015-registered cars across recent test years:
| Test year | Pass rate | |
|---|---|---|
| 2023 | 87.8% +7.2 vs same-age |
|
| 2024 | 87.0% +8.4 vs same-age |
|
| 2025 | 86.4% +9.3 vs same-age |
The raw rate normally falls as cars age. The “vs same-age” figure compares this cohort with all UK cars registered in the same year, so normal ageing is not mistaken for a bad model year.
What fails on a 2015 One
| # | System | Defects recorded | Share |
|---|---|---|---|
| 1 | Tyres | 2,304 | 33.5% |
| 2 | Brakes | 1,274 | 18.5% |
| 3 | Visibility | 1,149 | 16.7% |
| 4 | Lamps, reflectors and electrical equipment | 878 | 12.8% |
| 5 | Suspension | 477 | 6.9% |
| 6 | Noise, emissions and leaks | 397 | 5.8% |
All One years compared
| Registration year | Tests | Pass rate | Vs same-age | Median mileage |
|---|---|---|---|---|
| 2011 | 2,157 | 77.2% | +8.1 pts | 79,412 |
| 2012 | 10,806 | 79.8% | +8.6 pts | 70,878 |
| 2013 | 19,384 | 80.2% | +6.9 pts | 65,335 |
| 2014 | 18,319 | 85.3% | +9.5 pts | 62,088 |
| 2015 (this page) | 30,910 | 87.0% | +8.3 pts | 54,905 |
| 2016 | 24,674 | 88.4% | +7.1 pts | 48,146 |
| 2017 | 15,904 | 88.8% | +4.8 pts | 41,168 |
| 2018 | 4,606 | 90.9% | +4.5 pts | 32,379 |
| 2019 | 4,572 | 91.1% | +2.7 pts | 27,324 |
| 2020 | 3,435 | 91.9% | +2.0 pts | 22,338 |
| 2021 | 2,627 | 91.7% | +1.3 pts | 21,647 |
Weighing up which year to buy? See the full ranking: MINI One years to avoid.
- Free MOT history checkThe exact car’s failures, advisories and mileage trail — sellers can’t edit it
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- XTOOL diagnostic toolsXTOOL code readers for petrol and diesel cars
- Autel UK testersAutel professional-grade diagnostic testers
FAQs
Is a 2015 MINI One reliable?
2015-registered examples passed 87.0% of their MOT tests (30,910 tests, 2023–2025), +8.3 points versus all UK cars registered in the same year. At roughly 11 years old with a median 54,905 miles, condition now varies car by car — always check the individual MOT history.
What mileage is too high for a 2015 One?
The median tested example shows 54,905 miles. Anything far beyond that isn't automatically bad — a motorway-mile car with consistent service records often beats a low-mileage school-run car — but price accordingly and scrutinise the mileage trail for gaps or drops.
Should I buy the petrol or diesel 2015 One?
In this cohort petrols pass 87.4% of tests against 84.2% for diesels. Mileage and use can explain part of that gap, so treat it as a reason to inspect DPF and emissions history, not a fuel-type verdict.
Source: DVSA Anonymised MOT tests and results, 2023–2025 extracts (96 million Class 4 initial tests; retests excluded). Only vehicles old enough for a routine first MOT are included. Age-adjusted figures compare the model-year cohort with all vehicles of the same registration year tested in the same calendar year. Contains public sector information licensed under OGL v3.0.