2021 Mercedes-Benz A 250 AMG Line Premium E Auto MOT pass rate: 91.7% (1,812 tests)
Is the 2021 A 250 AMG Line Premium E Auto getting worse?
Pass rate of 2021-registered cars across recent test years:
| Test year | Pass rate | |
|---|---|---|
| 2024 | 91.5% +0.8 vs same-age |
|
| 2025 | 91.9% +1.7 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 A 250 AMG Line Premium E Auto
| # | System | Defects recorded | Share |
|---|---|---|---|
| 1 | Tyres | 136 | 63.8% |
| 2 | Brakes | 24 | 11.3% |
| 3 | Visibility | 20 | 9.4% |
| 4 | Suspension | 7 | 3.3% |
| 5 | Noise, emissions and leaks | 6 | 2.8% |
| 6 | Road Wheels | 5 | 2.3% |
All A 250 AMG Line Premium E Auto years compared
| Registration year | Tests | Pass rate | Vs same-age | Median mileage |
|---|---|---|---|---|
| 2020 | 5,127 | 91.4% | +1.5 pts | 33,190 |
| 2021 (this page) | 1,812 | 91.7% | +1.2 pts | 33,026 |
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FAQs
Is a 2021 Mercedes-Benz A 250 AMG Line Premium E Auto reliable?
2021-registered examples passed 91.7% of their MOT tests (1,812 tests, 2023–2025), +1.2 points versus all UK cars registered in the same year. At roughly 5 years old with a median 33,026 miles, condition now varies car by car — always check the individual MOT history.
What mileage is too high for a 2021 A 250 AMG Line Premium E Auto?
The median tested example shows 33,026 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.