2015 Mazda Cx-3 MOT pass rate: 80.9% (6,996 tests)
Is the 2015 Cx-3 getting worse?
Pass rate of 2015-registered cars across recent test years:
| Test year | Pass rate | |
|---|---|---|
| 2023 | 84.8% +4.3 vs same-age |
|
| 2024 | 81.6% +3.1 vs same-age |
|
| 2025 | 76.3% -0.7 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 2015 Cx-3
| # | System | Defects recorded | Share |
|---|---|---|---|
| 1 | Suspension | 621 | 27.2% |
| 2 | Brakes | 477 | 20.9% |
| 3 | Seat belts and supplementary restraint systems | 396 | 17.4% |
| 4 | Tyres | 380 | 16.7% |
| 5 | Visibility | 150 | 6.6% |
| 6 | Lamps, reflectors and electrical equipment | 150 | 6.6% |
All Cx-3 years compared
| Registration year | Tests | Pass rate | Vs same-age | Median mileage |
|---|---|---|---|---|
| 2015 (this page) | 6,996 | 80.9% | +2.2 pts | 58,382 |
| 2016 | 14,521 | 82.1% | +0.8 pts | 52,608 |
| 2017 | 14,373 | 88.3% | +4.3 pts | 44,168 |
| 2018 | 16,668 | 91.1% | +4.8 pts | 36,824 |
| 2019 | 20,957 | 92.6% | +4.2 pts | 28,844 |
Weighing up which year to buy? See the full ranking: Mazda Cx-3 years to avoid.
- Free MOT history checkThe exact car’s failures, advisories and mileage trail — sellers can’t edit it
- Topdon OBD2 scannersTopdon diagnostic scanners with full-system readouts
- XTOOL diagnostic toolsXTOOL code readers for petrol and diesel cars
- Autel UK testersAutel professional-grade diagnostic testers
FAQs
Is a 2015 Mazda Cx-3 reliable?
2015-registered examples passed 80.9% of their MOT tests (6,996 tests, 2023–2025), +2.2 points versus all UK cars registered in the same year. At roughly 11 years old with a median 58,382 miles, condition now varies car by car — always check the individual MOT history.
What mileage is too high for a 2015 Cx-3?
The median tested example shows 58,382 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.
Should I buy the petrol or diesel 2015 Cx-3?
In this cohort petrols pass 81.9% of tests against 78.2% for diesels. Mileage and use can explain part of that gap, so treat it as a reason to inspect DPF and emissions history, not a fuel-type verdict.
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.