2015 Bmw X3 — MOT failures & pass rate
Across 40,777 MOT tests analysed for the 2015 Bmw X3, the most common recorded failure areas were suspension, tyres and lighting & signalling. Its pass rate of 85.6% was above the average for mid-size SUVs of a similar age (84.3%). Higher-mileage examples failed more often — 18.6% in the 150k+ group versus 8.7% in the 0-30k group.
How it compares
Top failure categories
| # | Category | % of tests affected | Tests |
|---|---|---|---|
| 1 | Suspension | 5.1% | 2,080 |
| 2 | Tyres | 4.8% | 1,971 |
| 3 | Lighting & signalling | 4.6% | 1,861 |
| 4 | Visibility | 2.9% | 1,173 |
| 5 | Brakes | 2.6% | 1,052 |
| 6 | Emissions & environmental | 1.0% | 390 |
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 | 1,953 |
| 2 | Headlamp aim | 1,232 |
| 3 | Tread depth | 1,006 |
| 4 | Brake pads | 978 |
| 5 | Wipers | 773 |
| 6 | Washers | 580 |
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 | 21.4% | 8,722 |
| 2 | Other defects | 16.7% | 6,827 |
| 3 | Brakes | 15.7% | 6,416 |
| 4 | Suspension | 6.0% | 2,447 |
| 5 | Visibility | 3.9% | 1,601 |
| 6 | Emissions & environmental | 2.3% | 929 |
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 | 1,682 | 8.7% |
| 30-60k | 12,749 | 12.0% |
| 60-90k | 15,897 | 15.2% |
| 90-120k | 7,408 | 16.5% |
| 120-150k | 2,294 | 17.5% |
| 150k+ | 740 | 18.6% |
Failure rate by age
By fuel type
| Fuel | Tests | Fail rate |
|---|---|---|
| Diesel | 40,740 | 14.4% |
| Petrol | 37 | 13.5% |
Trend over time
| Dataset year | Tests | Fail rate |
|---|---|---|
| 2021 | 8,100 | 13.2% |
| 2022 | 8,208 | 14.7% |
| 2023 | 8,195 | 14.3% |
| 2024 | 8,144 | 15.0% |
| 2025 | 8,130 | 14.6% |
What to check before buying a 2015 X3
Before buying a 2015 Bmw X3, focus on the areas it most often fails on. Suspension accounted for 5.1% of tests for this year.
- Suspension (5.1% 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.
- Tyres (4.8% 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.
- Lighting & signalling (4.6% 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 X3s pass their MOT?
85.6% of the 40,777 2015 Bmw X3 MOT tests in this dataset passed — a 14.4% fail rate.
What is the most common MOT failure on a 2015 Bmw X3?
Suspension, recorded in 5.1% of tests, followed by tyres (4.8%).
Does the 2015 X3 get worse with mileage?
Its MOT fail rate rises from 8.7% in the 0-30k band to 18.6% in the 150k+ band.
Methodology & source. Based on 40,777 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.