2021 Bmw X7 Xdrive40D M Mhev Auto — MOT failures & pass rate
Across 1,015 MOT tests analysed for the 2021 Bmw X7 Xdrive40D M Mhev Auto, the most common recorded failure areas were tyres, lighting & signalling and other defects. Its pass rate of 89.3% was below the average for cars of a similar age (91.2%).
How it compares
Top failure categories
| # | Category | % of tests affected | Tests |
|---|---|---|---|
| 1 | Tyres | 7.6% | 77 |
| 2 | Lighting & signalling | 2.3% | 23 |
| 3 | Other defects | 0.9% | 9 |
| 4 | Emissions & environmental | 0.7% | 7 |
| 5 | Visibility | 0.6% | 6 |
| 6 | Seat belts & restraints | 0.4% | 4 |
Most common specific failures
The exact components most often recorded as failures — more specific than the categories above.
| # | Failure item | Times recorded |
|---|---|---|
| 1 | Registration plates | 16 |
| 2 | Headlamp aim | 16 |
| 3 | Tread depth | 11 |
| 4 | Side repeaters | 11 |
| 5 | Malfunction indicator lamp | 7 |
| 6 | Washers | 4 |
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 | 15.8% | 160 |
| 2 | Other defects | 7.3% | 74 |
| 3 | Visibility | 2.7% | 27 |
| 4 | Brakes | 2.3% | 23 |
| 5 | Suspension | 2.2% | 22 |
| 6 | Emissions & environmental | 2.1% | 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 | 352 | 11.7% |
| 30-60k | 568 | 10.7% |
| 60-90k | 88 | 8.0% |
Failure rate by age
Trend over time
| Dataset year | Tests | Fail rate |
|---|---|---|
| 2024 | 518 | 11.2% |
| 2025 | 477 | 10.5% |
What to check before buying a 2021 X7 Xdrive40D M Mhev Auto
Before buying a 2021 Bmw X7 Xdrive40D M Mhev Auto, focus on the areas it most often fails on. Tyres accounted for 7.6% of tests for this year.
- Tyres (7.6% 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 (2.3% of tests): Often a cheap bulb, but persistent issues can mean wiring or corrosion in the units. Typical repair: £10–£150.
- Other defects (0.9% of tests): Miscellaneous items not in the main categories. Typical repair: varies.
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 2021 Bmw X7 Xdrive40D M Mhev Autos pass their MOT?
89.3% of the 1,015 2021 Bmw X7 Xdrive40D M Mhev Auto MOT tests in this dataset passed — a 10.7% fail rate.
What is the most common MOT failure on a 2021 Bmw X7 Xdrive40D M Mhev Auto?
Tyres, recorded in 7.6% of tests, followed by lighting & signalling (2.3%).
Does the 2021 X7 Xdrive40D M Mhev Auto get worse with mileage?
Its MOT fail rate rises from 11.7% in the 0-30k band to 8.0% in the 60-90k band.
Methodology & source. Based on 1,015 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.