Petrol Infiniti Q30: MOT pass rate

89.5% of petrol Infiniti Q30s pass the MOT first time, measured across 982 DVSA tests on that fuel type alone. Average mileage at test was 45,718.

Petrol against the other Infiniti Q30 versions

Why the fuel type changes the number

Petrol cars avoid the DPF and emissions failures that catch diesels, and usually fail on the same consumables as any other car.

On the Infiniti Q30 specifically, petrol is the strongest at 89.5%, and this petrol version sits 3.9 points above the 85.6% model average.

What it means if you are buying one

The petrol Infiniti Q30 is the stronger side of this model on MOT data. Still judge the individual car, but the fuel type is a mild point in its favour. 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 petrol Infiniti Q30 had covered 45,718 miles at test, against 63,258 for the diesel. That is below average for a car this age, worth a mileage-consistency check since an unusually low reading is sometimes clocking rather than luck.

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 Infiniti Q30 page separate age from fuel if you want to isolate one.

Most common MOT failures on a petrol Infiniti Q30

1. Tyre tread depth not in accordance with the requirements, 3.6% of tests
2. A tyre seriously damaged, 2.4% of tests
3. a brake lining or pad worn below 1.5mm, 1.8% of tests
4. A spring or spring component fractured or seriously weakened, 1.3% of tests
5. A suspension joint dust cover missing or no longer prevents the ingress of dirt etc, 1.3% of tests
6. Windscreen washers not working or not providing sufficient fluid to clear the windscreen, 1% of tests
7. A tyre cords visible or damaged, 0.7% of tests
8. A headlamp or light source missing, inoperative or more than ½ not functioning in the case of LED, 0.6% of tests
9. Excessive fluctuation in brake effort through each wheel revolution., 0.6% of tests (1.66x the national rate for this defect)
10. A direction indicator lamp missing, inoperative or in the case of a multiple light source more than 1/2 not functioning, 0.5% of tests

From 985 DVSA-tracked petrol Infiniti Q30 tests, 2024, split out from the Infiniti Q30's other fuel types. DVSA testers marked 6.71% 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 petrol Infiniti Q30

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

1. Brake disc or drum significantly and obviously worn, 5.9% of tests (1.85x the national rate for this defect)
2. A tyre seriously damaged, 28.3% of tests (1.83x the national rate for this defect), also fails
3. a brake lining or pad worn below 1.5mm, 11% of tests (1.17x the national rate for this defect), also fails
4. Tyre tread depth not in accordance with the requirements, 25.9% of tests, also fails
5. Brake disc or drum excessively weakened, insecure or fractured, 11.2% of tests
6. Number plate inscription missing or illegible, 1.6% of tests
7. Excessive fluctuation in brake effort through each wheel revolution., 1.1% of tests (1.32x the national rate for this defect), also fails
8. A suspension pin, bush or joint excessively worn, 1% of tests
9. A steering ball joint with excessive wear or free play, 0.8% of tests
10. Fluid leaking excessively and likely to harm the environment or to pose a safety risk to other road users, 0.7% of tests

From 985 DVSA-tracked petrol Infiniti Q30 tests, 2024.

Other Infiniti Q30 fuel types

• Diesel Infiniti Q30 - 84.6%

All Infiniti Q30 MOT data · Every model