Diesel Mitsubishi Asx: MOT pass rate

77.4% of diesel Mitsubishi Asx pass the MOT first time, measured across 15,051 DVSA tests on that fuel type alone. Average mileage at test was 82,521.

Diesel against the other Mitsubishi Asx versions

Why the fuel type changes the number

Diesels carry DPFs, EGR valves and stricter smoke limits, so emissions and exhaust faults account for failures petrol cars never see.

On the Mitsubishi Asx specifically, petrol is the strongest at 81.2%, and this diesel version sits 1.7 points below the 79.1% model average.

What it means if you are buying one

The diesel Mitsubishi Asx fails more often than the model average, so budget for the items that catch this fuel type and treat a fresh MOT as worth paying for. Buying a damaged one? run it through the analyzer, check the exact car, decode the VIN and check the mileage before you bid.

Mileage is part of the answer

The average diesel Mitsubishi Asx had covered 82,521 miles at test, against 67,558 for the petrol. That is above average, the point where suspension bushes, drop links and exhaust corrosion start showing up as advisories before they become failures.

Fuel type and mileage are tangled together: diesels are usually bought by higher-mileage drivers, so some of any gap between fuels is the miles rather than the engine. The per-year figures on the Mitsubishi Asx page separate age from fuel if you want to isolate one.

Most common MOT failures on a diesel Mitsubishi Asx

1. Brake pipe damaged or excessively corroded, 4.5% of tests (4.23x the national rate for this defect)
2. A shock absorber damaged to the extent that it does not function or showing signs of severe leakage, 1.9% of tests (1.96x the national rate for this defect)
3. Parking brake inoperative on one side, 1.1% of tests (1.8x the national rate for this defect)
4. a brake lining or pad worn below 1.5mm, 3.8% of tests (1.75x the national rate for this defect)
5. Steering rack gaiter or ball joint dust cover missing or no longer prevents the ingress of dirt etc, 1.3% of tests (1.71x the national rate for this defect)
6. Parking brake efficiency below minimum requirement, 2% of tests (1.53x the national rate for this defect)
7. A steering ball joint with excessive wear or free play, 1.9% of tests (1.43x the national rate for this defect)
8. Exhaust system leaking or insecure, 1.4% of tests (1.43x the national rate for this defect)
9. A suspension joint dust cover missing or no longer prevents the ingress of dirt etc, 2.3% of tests (1.25x the national rate for this defect)
10. A suspension pin, bush or joint excessively worn, 6.2% of tests (1.24x the national rate for this defect)

From 15,124 DVSA-tracked diesel Mitsubishi Asx tests, 2024, split out from the Mitsubishi Asx's other fuel types. DVSA testers marked 4.48% of these flagged defects as "dangerous", against 5.11% nationally. See which fuel type fails on the most dangerous defects nationally for how that compares across the whole fleet.

Most common MOT advisories on a diesel Mitsubishi Asx

Flagged but doesn't fail the car, a different list from the failures above.

1. Brake pipe damaged or excessively corroded, 24.3% of tests (3.92x the national rate for this defect), also fails
2. A suspension component excessively damaged or corroded, 11.4% of tests (2.2x the national rate for this defect)
3. a brake lining or pad worn below 1.5mm, 16.8% of tests (1.79x the national rate for this defect), also fails
4. A brake hose ferrule excessively corroded, 1.8% of tests (1.42x the national rate for this defect)
5. Brake disc or drum excessively weakened, insecure or fractured, 16.7% of tests (1.36x the national rate for this defect)
6. Vehicle structure corroded to the extent that the rigidity of the assembly is seriously reduced, 1.7% of tests (1.34x the national rate for this defect)
7. Tyre tread depth not in accordance with the requirements, 31.3% of tests (1.17x the national rate for this defect)
8. The strength or continuity of the load bearing structure within 30cm of any sub-frame, spring or suspension component mounting (a 'prescribed area') is significantly reduced or inadequately repaired, 1.8% of tests (1.16x the national rate for this defect)
9. A suspension pin, bush or joint excessively worn, 13.7% of tests, also fails
10. A tyre seriously damaged, 10.5% of tests

From 15,124 DVSA-tracked diesel Mitsubishi Asx tests, 2024.

Other Mitsubishi Asx fuel types

• Petrol Mitsubishi Asx - 81.2%

All Mitsubishi Asx MOT data · Every model