2014 BMW 3 Series — MOT failures & pass rate
188,788 MOT tests on the 2014 BMW 3 Series are in this dataset, and 85.5% of them passed. Executive cars of a similar age fail 15.5% of the time, so this is 1.0pp better than the group it competes with. Failures cluster in lighting & signalling, tyres and brakes.
What the MOT record shows
No single area dominates — lighting & signalling (8.4%) and tyres (6.5%) are close, so failures are spread across several systems rather than one weak point.
At component level the recurring items are tread depth, headlamp aim and position lamp — tread depth alone was recorded 7,184 times.
Condition tracks the odometer closely. Failures run at 6.3% in the 0-30k band and 18.4% in the 150k+ band, a 12.1-point spread — more than double.
The petrol cars hold up better: 12.2% fail against 14.8% for diesel, a 2.7-point gap across 188,742 tests.
Tyres is the most common advisory, noted on 24.5% of tests — work that passed today but is likely due soon.
The trend is worsening — 12.8% of tests failed in 2021 against 16.3% in 2025, the usual pattern as a fleet ages.
How it compares
Top failure categories
| # | Category | % of tests affected | Tests |
|---|---|---|---|
| 1 | Lighting & signalling | 8.4% | 15,900 |
| 2 | Tyres | 6.5% | 12,292 |
| 3 | Brakes | 3.3% | 6,135 |
| 4 | Suspension | 2.8% | 5,237 |
| 5 | Visibility | 2.4% | 4,436 |
| 6 | Road wheels | 0.8% | 1,520 |
Most common specific failures
The exact components most often recorded as failures — more specific than the categories above.
| # | Failure item | Times recorded |
|---|---|---|
| 1 | Tread depth | 7,184 |
| 2 | Headlamp aim | 6,806 |
| 3 | Position lamp | 6,617 |
| 4 | Brake pads | 3,950 |
| 5 | Headlamp | 3,851 |
| 6 | Washers | 3,562 |
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 | 24.5% | 46,176 |
| 2 | Brakes | 18.1% | 34,196 |
| 3 | Other defects | 12.1% | 22,826 |
| 4 | Suspension | 8.4% | 15,869 |
| 5 | Visibility | 3.9% | 7,437 |
| 6 | Emissions & environmental | 2.0% | 3,840 |
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 | 3,643 | 6.3% |
| 30-60k | 31,922 | 10.5% |
| 60-90k | 62,980 | 13.6% |
| 90-120k | 51,791 | 16.2% |
| 120-150k | 25,402 | 17.3% |
| 150k+ | 13,016 | 18.4% |
Failure rate by age
By fuel type
| Fuel | Tests | Fail rate |
|---|---|---|
| Diesel | 165,766 | 14.8% |
| Petrol | 22,976 | 12.2% |
| Hybrid | 46 | 6.5% |
Trend over time
| Dataset year | Tests | Fail rate |
|---|---|---|
| 2021 | 38,557 | 12.8% |
| 2022 | 37,930 | 13.3% |
| 2023 | 38,054 | 14.8% |
| 2024 | 37,366 | 15.3% |
| 2025 | 36,881 | 16.3% |
What to check before buying a 2014 3 Series
The failure pattern for this year is specific enough to inspect against: lighting & signalling accounted for 8.4% of tests. Start there.
- Lighting & signalling (8.4% of tests): Often a cheap bulb, but persistent issues can mean wiring or corrosion in the units. Typical repair: £10–£150.
- Tyres (6.5% 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 (3.3% 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.
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 3 Seriess pass their MOT?
85.5% of the 188,788 2014 BMW 3 Series MOT tests in this dataset passed — a 14.5% fail rate.
What is the most common MOT failure on a 2014 BMW 3 Series?
Lighting & signalling, recorded in 8.4% of tests, followed by tyres (6.5%).
Does the 2014 3 Series get worse with mileage?
Its MOT fail rate rises from 6.3% in the 0-30k band to 18.4% in the 150k+ band.
Methodology & source. Based on 188,788 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.