2012 Mitsubishi Asx MOT pass rate: 73.5% (6,240 tests)
Is the 2012 Asx getting worse?
Pass rate of 2012-registered cars across recent test years:
| Test year | Pass rate | |
|---|---|---|
| 2023 | 75.5% +3.2 vs same-age |
|
| 2024 | 73.6% +2.6 vs same-age |
|
| 2025 | 71.2% +0.9 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 2012 Asx
| # | System | Defects recorded | Share |
|---|---|---|---|
| 1 | Brakes | 1,228 | 28.7% |
| 2 | Suspension | 1,077 | 25.2% |
| 3 | Lamps, reflectors and electrical equipment | 416 | 9.7% |
| 4 | Tyres | 307 | 7.2% |
| 5 | Steering | 303 | 7.1% |
| 6 | Noise, emissions and leaks | 299 | 7.0% |
All Asx years compared
| Registration year | Tests | Pass rate | Vs same-age | Median mileage |
|---|---|---|---|---|
| 2010 | 4,738 | 67.2% | -0.1 pts | 112,501 |
| 2011 | 6,203 | 70.7% | +1.6 pts | 105,110 |
| 2012 (this page) | 6,240 | 73.5% | +2.3 pts | 95,450 |
| 2013 | 7,194 | 73.3% | -0.0 pts | 85,248 |
| 2014 | 11,031 | 75.2% | -0.6 pts | 78,452 |
| 2015 | 13,418 | 80.4% | +1.7 pts | 69,236 |
| 2016 | 9,432 | 83.6% | +2.2 pts | 59,914 |
| 2017 | 11,789 | 85.7% | +1.6 pts | 50,842 |
| 2018 | 6,490 | 89.7% | +3.4 pts | 41,644 |
| 2019 | 3,401 | 91.4% | +3.0 pts | 32,560 |
Weighing up which year to buy? See the full ranking: Mitsubishi Asx years to avoid.
- Free MOT history checkThe exact car’s failures, advisories and mileage trail — sellers can’t edit it
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- XTOOL diagnostic toolsXTOOL code readers for petrol and diesel cars
- Autel UK testersAutel professional-grade diagnostic testers
FAQs
Is a 2012 Mitsubishi Asx reliable?
2012-registered examples passed 73.5% of their MOT tests (6,240 tests, 2023–2025), +2.3 points versus all UK cars registered in the same year. At roughly 14 years old with a median 95,450 miles, condition now varies car by car — always check the individual MOT history.
What mileage is too high for a 2012 Asx?
The median tested example shows 95,450 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 2012 Asx?
In this cohort petrols pass 76.1% of tests against 71.3% 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.