2020 Mazda Cx-30 MOT pass rate: 93.0% (3,469 tests)
Is the 2020 Cx-30 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 | 92.5% +2.5 vs same-age |
|
| 2025 | 91.4% +2.5 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 Cx-30
| # | System | Defects recorded | Share |
|---|---|---|---|
| 1 | Tyres | 130 | 37.2% |
| 2 | Brakes | 76 | 21.8% |
| 3 | Visibility | 75 | 21.5% |
| 4 | Suspension | 36 | 10.3% |
| 5 | Noise, emissions and leaks | 18 | 5.2% |
| 6 | Lamps, reflectors and electrical equipment | 7 | 2.0% |
All Cx-30 years compared
| Registration year | Tests | Pass rate | Vs same-age | Median mileage |
|---|---|---|---|---|
| 2020 (this page) | 3,469 | 93.0% | +3.1 pts | 25,198 |
| 2021 | 3,647 | 94.3% | +3.9 pts | 25,150 |
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FAQs
Is a 2020 Mazda Cx-30 reliable?
2020-registered examples passed 93.0% of their MOT tests (3,469 tests, 2023–2025), +3.1 points versus all UK cars registered in the same year. At roughly 6 years old with a median 25,198 miles, condition now varies car by car — always check the individual MOT history.
What mileage is too high for a 2020 Cx-30?
The median tested example shows 25,198 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.