2020 BMW M135I Xdrive Auto MOT pass rate: 90.8% (10,264 tests)
Is the 2020 M135I Xdrive Auto getting worse?
Pass rate of 2020-registered cars across recent test years:
| Test year | Pass rate | |
|---|---|---|
| 2023 | 91.3% +0.5 vs same-age |
|
| 2024 | 91.0% +1.1 vs same-age |
|
| 2025 | 90.0% +1.1 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 2020 M135I Xdrive Auto
| # | System | Defects recorded | Share |
|---|---|---|---|
| 1 | Tyres | 870 | 63.9% |
| 2 | Brakes | 159 | 11.7% |
| 3 | Suspension | 78 | 5.7% |
| 4 | Visibility | 69 | 5.1% |
| 5 | Identification of the vehicle | 52 | 3.8% |
| 6 | Lamps, reflectors and electrical equipment | 42 | 3.1% |
All M135I Xdrive Auto years compared
| Registration year | Tests | Pass rate | Vs same-age | Median mileage |
|---|---|---|---|---|
| 2019 | 2,750 | 90.0% | +1.7 pts | 32,089 |
| 2020 (this page) | 10,264 | 90.8% | +0.9 pts | 28,190 |
| 2021 | 6,593 | 91.5% | +1.1 pts | 27,132 |
| 2022 | 2,267 | 92.2% | +1.0 pts | 22,399 |
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FAQs
Is a 2020 BMW M135I Xdrive Auto reliable?
2020-registered examples passed 90.8% of their MOT tests (10,264 tests, 2023–2025), +0.9 points versus all UK cars registered in the same year. At roughly 6 years old with a median 28,190 miles, condition now varies car by car — always check the individual MOT history.
What mileage is too high for a 2020 M135I Xdrive Auto?
The median tested example shows 28,190 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.