Diesel Renault Grand Modus: MOT pass rate

56.5% of diesel Renault Grand Modus pass the MOT first time, measured across 1,381 DVSA tests on that fuel type alone. Average mileage at test was 88,092.

Diesel against the other Renault Grand Modus 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 Renault Grand Modus specifically, petrol is the strongest at 61.3%, and this diesel version sits 2.6 points below the 59.1% model average.

What it means if you are buying one

The diesel Renault Grand Modus 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 Renault Grand Modus had covered 88,092 miles at test, against 70,940 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 Renault Grand Modus page separate age from fuel if you want to isolate one.

Most common MOT failures on a diesel Renault Grand Modus

1. Seat belt buckle missing, damaged or not functioning as intended, 3.3% of tests (22.41x the national rate for this defect)
2. A steering ball joint with excessive wear or free play, 12.1% of tests (9.3x the national rate for this defect)
3. A spring or spring component fractured or seriously weakened, 15.1% of tests (6.65x the national rate for this defect)
4. A lamp missing, inoperative or in the case of a multiple light source more than 1/2 not functioning, 7.4% of tests (3.32x the national rate for this defect)
5. A suspension joint dust cover missing or no longer prevents the ingress of dirt etc, 5.7% of tests (3.08x the national rate for this defect)
6. Stop lamp missing, inoperative or in the case of a multiple light source more than 1/2 not functioning, 3.7% of tests (2.74x the national rate for this defect)
7. A suspension pin, bush or joint excessively worn, 13.7% of tests (2.73x the national rate for this defect)
8. Parking brake efficiency below minimum requirement, 2.9% of tests (2.26x the national rate for this defect)
9. A headlamp or light source missing, inoperative or more than ½ not functioning in the case of LED, 2.7% of tests (2.17x the national rate for this defect)
10. Significant brake effort recorded with no brake applied indicating a binding brake, 2.1% of tests (2.01x the national rate for this defect)

From 1,393 DVSA-tracked diesel Renault Grand Modus tests, 2024, split out from the Renault Grand Modus's other fuel types. DVSA testers marked 4.08% 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 Renault Grand Modus

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

1. Stop lamp missing, inoperative or in the case of a multiple light source more than 1/2 not functioning, 3.2% of tests (8.72x the national rate for this defect), also fails
2. A steering ball joint with excessive wear or free play, 10.2% of tests (7.64x the national rate for this defect), also fails
3. A wheel badly distorted or wear between wheel and hub at spigot mounting, 4.2% of tests (3.97x the national rate for this defect)
4. Lamp emitted colour, position or intensity not in accordance with the requirements, 3.2% of tests (2.31x the national rate for this defect)
5. A brake hose ferrule excessively corroded, 2.6% of tests (2.03x the national rate for this defect)
6. Significant brake effort recorded with no brake applied indicating a binding brake, 3.7% of tests (1.87x the national rate for this defect), also fails
7. A suspension component excessively damaged or corroded, 9.1% of tests (1.76x the national rate for this defect)
8. A spring or spring component fractured or seriously weakened, 7.1% of tests (1.5x the national rate for this defect), also fails
9. Brake disc or drum excessively weakened, insecure or fractured, 16.9% of tests (1.38x the national rate for this defect)
10. Tyre tread depth not in accordance with the requirements, 34.3% of tests (1.29x the national rate for this defect)

From 1,393 DVSA-tracked diesel Renault Grand Modus tests, 2024.

Other Renault Grand Modus fuel types

• Petrol Renault Grand Modus - 61.3%

All Renault Grand Modus MOT data · Every model