Diesel Mitsubishi Grandis: MOT pass rate

57.6% of diesel Mitsubishi Grandis pass the MOT first time, measured across 535 DVSA tests on that fuel type alone. Average mileage at test was 134,185.

Diesel against the other Mitsubishi Grandis 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 Grandis specifically, petrol is the strongest at 63.2%, and this diesel version sits 2.9 points below the 60.5% model average.

What it means if you are buying one

The diesel Mitsubishi Grandis 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 Grandis had covered 134,185 miles at test, against 114,631 for the petrol. That is high mileage, so timing belts, clutches, suspension bushes and corrosion are the items worth budgeting for rather than the MOT itself.

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 Grandis page separate age from fuel if you want to isolate one.

Most common MOT failures on a diesel Mitsubishi Grandis

1. A suspension component excessively damaged or corroded, 7.2% of tests (20.67x the national rate for this defect)
2. Headlamp reflector or lens seriously defective or missing, 4.4% of tests (20.6x the national rate for this defect)
3. 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, 9.1% of tests (9.61x the national rate for this defect)
4. A steering ball joint with excessive wear or free play, 7.6% of tests (5.82x the national rate for this defect)
5. A lamp missing, inoperative or in the case of a multiple light source more than 1/2 not functioning, 11.5% of tests (5.15x the national rate for this defect)
6. The aim of a headlamp is not within limits laid down in the requirements, 11.5% of tests (4.88x the national rate for this defect)
7. Steering rack gaiter or ball joint dust cover missing or no longer prevents the ingress of dirt etc, 2.8% of tests (3.73x the national rate for this defect)
8. A rear registration plate lamp or light source missing or inoperative in the case of a single lamp or all lamps, 3.1% of tests (3.52x the national rate for this defect)
9. A suspension pin, bush or joint excessively worn, 14.6% of tests (2.91x the national rate for this defect)
10. A suspension joint dust cover missing or no longer prevents the ingress of dirt etc, 4.3% of tests (2.31x the national rate for this defect)

From 540 DVSA-tracked diesel Mitsubishi Grandis tests, 2024, split out from the Mitsubishi Grandis's other fuel types. DVSA testers marked 3.83% 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 Grandis

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

1. Product on the lens or light source which obviously reduces light intensity or changes emitted colour to other than white or yellow, 15.4% of tests (13.89x the national rate for this defect)
2. 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, 13.7% of tests (9.03x the national rate for this defect), also fails
3. A steering ball joint with excessive wear or free play, 7.8% of tests (5.83x the national rate for this defect), also fails
4. Brake pipe damaged or excessively corroded, 32.4% of tests (5.23x the national rate for this defect)
5. A suspension component excessively damaged or corroded, 21.7% of tests (4.19x the national rate for this defect), also fails
6. Number plate inscription missing or illegible, 10.2% of tests (3.84x the national rate for this defect)
7. Fluid leaking excessively and likely to harm the environment or to pose a safety risk to other road users, 17% of tests (3.06x the national rate for this defect)
8. Significant brake effort recorded with no brake applied indicating a binding brake, 5.7% of tests (2.87x the national rate for this defect)
9. A shock absorber damaged to the extent that it does not function or showing signs of severe leakage, 7.4% of tests (1.89x the national rate for this defect)
10. A suspension pin, bush or joint excessively worn, 22% of tests (1.65x the national rate for this defect), also fails

From 540 DVSA-tracked diesel Mitsubishi Grandis tests, 2024.

Other Mitsubishi Grandis fuel types

• Petrol Mitsubishi Grandis - 63.2%

All Mitsubishi Grandis MOT data · Every model