2014 BMW M6 — MOT failures & pass rate
1,124 MOT tests on the 2014 BMW M6 are in this dataset, and 90.2% of them passed. Against coupes & convertibles of a similar age (13.1% fail rate), the 2014 M6 comes out 3.3pp better. Failures cluster in tyres, suspension and emissions & environmental.
What the MOT record shows
One area stands out: tyres, recorded in 5.3% of tests against 2.1% for the next-worst category.
At component level the recurring items are catalyst emissions, coil spring and headlamp aim — catalyst emissions alone was recorded 30 times.
A 90-120k example is materially riskier than a 0-30k one: 14.5% versus 5.7%.
Tyres is the most common advisory, noted on 16.9% of tests — work that passed today but is likely due soon.
How it compares
Top failure categories
| # | Category | % of tests affected | Tests |
|---|---|---|---|
| 1 | Tyres | 5.3% | 59 |
| 2 | Suspension | 2.1% | 23 |
| 3 | Emissions & environmental | 1.8% | 20 |
| 4 | Lighting & signalling | 1.8% | 20 |
| 5 | Visibility | 0.9% | 10 |
| 6 | Brakes | 0.9% | 10 |
Most common specific failures
The exact components most often recorded as failures — more specific than the categories above.
| # | Failure item | Times recorded |
|---|---|---|
| 1 | Catalyst emissions | 30 |
| 2 | Coil spring | 22 |
| 3 | Headlamp aim | 19 |
| 4 | Registration plates | 17 |
| 5 | Tread depth | 14 |
| 6 | Wipers | 10 |
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 | 16.9% | 190 |
| 2 | Brakes | 12.5% | 141 |
| 3 | Other defects | 3.6% | 41 |
| 4 | Suspension | 2.6% | 29 |
| 5 | Emissions & environmental | 2.2% | 25 |
| 6 | Visibility | 1.9% | 21 |
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 | 105 | 5.7% |
| 30-60k | 626 | 9.1% |
| 60-90k | 323 | 11.5% |
| 90-120k | 62 | 14.5% |
Failure rate by age
Trend over time
| Dataset year | Tests | Fail rate |
|---|---|---|
| 2021 | 240 | 11.7% |
| 2022 | 235 | 9.8% |
| 2023 | 227 | 9.3% |
| 2024 | 210 | 7.1% |
| 2025 | 212 | 10.8% |
What to check before buying a 2014 M6
The failure pattern for this year is specific enough to inspect against: tyres accounted for 5.3% of tests. Start there.
- Tyres (5.3% 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 (2.1% 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.
- Emissions & environmental (1.8% of tests): More common on older diesels (DPF/EGR) — can be expensive; check for warning lights and smoke. Typical repair: £100–£600.
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 2014 BMW M6s pass their MOT?
90.2% of the 1,124 2014 BMW M6 MOT tests in this dataset passed — a 9.8% fail rate.
What is the most common MOT failure on a 2014 BMW M6?
Tyres, recorded in 5.3% of tests, followed by suspension (2.1%).
Does the 2014 M6 get worse with mileage?
Its MOT fail rate rises from 5.7% in the 0-30k band to 14.5% in the 90-120k band.
Methodology & source. Based on 1,124 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.