Diesel Infiniti Q30: MOT pass rate
84.6% of diesel Infiniti Q30s pass the MOT first time, measured across 3,897 DVSA tests on that fuel type alone. Average mileage at test was 63,258.
Diesel against the other Infiniti Q30 versions
| Fuel | Pass rate | Tests |
|---|---|---|
| Diesel | 84.6% | 3,897 |
| Petrol | 89.5% | 982 |
| All Infiniti Q30 | 85.6% | 4,879 |
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 Infiniti Q30 specifically, petrol is the strongest at 89.5%, and this diesel version sits 1 points below the 85.6% model average.
What it means if you are buying one
The diesel Infiniti Q30 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. Check the exact car, decode the VIN and check the mileage before you bid.
Mileage is part of the answer
The average diesel Infiniti Q30 had covered 63,258 miles at test, against 45,718 for the petrol. That is around average, so condition and service history will tell you more than the odometer does.
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.
Other Infiniti Q30 fuel types
- Petrol Infiniti Q30 - 89.5%