2021 BMW 520D M Sport Mhev Auto MOT pass rate: 87.0% (3,145 tests)
Is the 2021 520D M Sport Mhev Auto getting worse?
Pass rate of 2021-registered cars across recent test years:
| Test year | Pass rate | |
|---|---|---|
| 2024 | 86.0% -4.6 vs same-age |
|
| 2025 | 87.9% -2.3 vs same-age |
The raw rate normally falls as cars age. The “vs same-age” figure compares this cohort with all UK cars registered in the same year, so normal ageing is not mistaken for a bad model year.
What fails on a 2021 520D M Sport Mhev Auto
| # | System | Defects recorded | Share |
|---|---|---|---|
| 1 | Tyres | 389 | 63.7% |
| 2 | Noise, emissions and leaks | 60 | 9.8% |
| 3 | Road Wheels | 53 | 8.7% |
| 4 | Visibility | 30 | 4.9% |
| 5 | Lamps, reflectors and electrical equipment | 28 | 4.6% |
| 6 | Identification of the vehicle | 26 | 4.3% |
All 520D M Sport Mhev Auto years compared
| Registration year | Tests | Pass rate | Vs same-age | Median mileage |
|---|---|---|---|---|
| 2020 | 9,025 | 89.2% | -0.7 pts | 38,540 |
| 2021 (this page) | 3,145 | 87.0% | -3.5 pts | 36,228 |
| 2022 | 2,053 | 87.6% | -3.6 pts | 31,505 |
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FAQs
Is a 2021 BMW 520D M Sport Mhev Auto reliable?
2021-registered examples passed 87.0% of their MOT tests (3,145 tests, 2023–2025), -3.5 points versus all UK cars registered in the same year. At roughly 5 years old with a median 36,228 miles, condition now varies car by car — always check the individual MOT history.
What mileage is too high for a 2021 520D M Sport Mhev Auto?
The median tested example shows 36,228 miles. Anything far beyond that isn't automatically bad — a motorway-mile car with consistent service records often beats a low-mileage school-run car — but price accordingly and scrutinise the mileage trail for gaps or drops.
Source: DVSA Anonymised MOT tests and results, 2023–2025 extracts (96 million Class 4 initial tests; retests excluded). Only vehicles old enough for a routine first MOT are included. Age-adjusted figures compare the model-year cohort with all vehicles of the same registration year tested in the same calendar year. Contains public sector information licensed under OGL v3.0.