2020 Mercedes-Benz GLA 200 AMG Line Edition + A MOT pass rate: 93.6% (6,231 tests)
Is the 2020 GLA 200 AMG Line Edition + A getting worse?
Pass rate of 2020-registered cars across recent test years:
| Test year | Pass rate | |
|---|---|---|
| 2023 | 94.9% +4.1 vs same-age |
|
| 2024 | 94.0% +4.1 vs same-age |
|
| 2025 | 91.7% +2.8 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 GLA 200 AMG Line Edition + A
| # | System | Defects recorded | Share |
|---|---|---|---|
| 1 | Tyres | 233 | 39.4% |
| 2 | Brakes | 143 | 24.2% |
| 3 | Visibility | 73 | 12.3% |
| 4 | Suspension | 31 | 5.2% |
| 5 | Lamps, reflectors and electrical equipment | 30 | 5.1% |
| 6 | Body, chassis, structure | 24 | 4.1% |
All GLA 200 AMG Line Edition + A years compared
| Registration year | Tests | Pass rate | Vs same-age | Median mileage |
|---|---|---|---|---|
| 2019 | 2,120 | 93.2% | +4.8 pts | 28,810 |
| 2020 (this page) | 6,231 | 93.6% | +3.6 pts | 24,643 |
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FAQs
Is a 2020 Mercedes-Benz GLA 200 AMG Line Edition + A reliable?
2020-registered examples passed 93.6% of their MOT tests (6,231 tests, 2023–2025), +3.6 points versus all UK cars registered in the same year. At roughly 6 years old with a median 24,643 miles, condition now varies car by car — always check the individual MOT history.
What mileage is too high for a 2020 GLA 200 AMG Line Edition + A?
The median tested example shows 24,643 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.