2015 BMW M3 — MOT failures & pass rate
3,077 MOT tests on the 2015 BMW M3 are in this dataset, and 90.7% of them passed. That is 4.7 percentage points better than executive cars of a similar age, which fail at 14.0%. Failures cluster in tyres, suspension and lighting & signalling.
What the MOT record shows
No single area dominates — tyres (4.0%) and suspension (3.8%) are close, so failures are spread across several systems rather than one weak point.
At component level the recurring items are coil spring, tread depth and headlamp aim — coil spring alone was recorded 110 times.
Condition tracks the odometer closely. Failures run at 7.2% in the 0-30k band and 11.4% in the 90-120k band, a 4.2-point spread.
Tyres is the most common advisory, noted on 14.2% of tests — work that passed today but is likely due soon.
The trend is improving — the fail rate fell from 9.6% in 2021 to 7.7% in 2025, as the worst-kept examples leave the fleet.
How it compares
Top failure categories
| # | Category | % of tests affected | Tests |
|---|---|---|---|
| 1 | Tyres | 4.0% | 123 |
| 2 | Suspension | 3.8% | 116 |
| 3 | Lighting & signalling | 1.8% | 55 |
| 4 | Visibility | 0.9% | 28 |
| 5 | Brakes | 0.8% | 26 |
| 6 | Emissions & environmental | 0.8% | 23 |
Most common specific failures
The exact components most often recorded as failures — more specific than the categories above.
| # | Failure item | Times recorded |
|---|---|---|
| 1 | Coil spring | 110 |
| 2 | Tread depth | 43 |
| 3 | Headlamp aim | 42 |
| 4 | Registration plates | 29 |
| 5 | Ball joint | 23 |
| 6 | Catalyst emissions | 19 |
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 | 14.2% | 436 |
| 2 | Brakes | 7.0% | 217 |
| 3 | Other defects | 3.9% | 119 |
| 4 | Visibility | 2.5% | 78 |
| 5 | Emissions & environmental | 2.2% | 68 |
| 6 | Suspension | 1.8% | 55 |
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 | 417 | 7.2% |
| 30-60k | 1,661 | 9.3% |
| 60-90k | 879 | 9.9% |
| 90-120k | 114 | 11.4% |
Failure rate by age
Trend over time
| Dataset year | Tests | Fail rate |
|---|---|---|
| 2021 | 668 | 9.6% |
| 2022 | 639 | 10.2% |
| 2023 | 616 | 10.5% |
| 2024 | 583 | 8.1% |
| 2025 | 571 | 7.7% |
What to check before buying a 2015 M3
The failure pattern for this year is specific enough to inspect against: tyres accounted for 4.0% of tests. Start there.
- Tyres (4.0% 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.
- Suspension (3.8% 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.
- Lighting & signalling (1.8% of tests): Often a cheap bulb, but persistent issues can mean wiring or corrosion in the units. Typical repair: £10–£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 BMW M3s pass their MOT?
90.7% of the 3,077 2015 BMW M3 MOT tests in this dataset passed — a 9.3% fail rate.
What is the most common MOT failure on a 2015 BMW M3?
Tyres, recorded in 4.0% of tests, followed by suspension (3.8%).
Does the 2015 M3 get worse with mileage?
Its MOT fail rate rises from 7.2% in the 0-30k band to 11.4% in the 90-120k band.
Methodology & source. Based on 3,077 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.