Diesel Audi Q3: MOT pass rate
81.1% of diesel Audi Q3s pass the MOT first time, measured across 63,653 DVSA tests on that fuel type alone. Average mileage at test was 78,442.
Diesel against the other Audi Q3 versions
| Fuel | Pass rate | Tests |
|---|---|---|
| Diesel | 81.1% | 63,653 |
| Petrol | 88% | 42,063 |
| All Audi Q3 | 83.8% | 105,722 |
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 Audi Q3 specifically, petrol is the strongest at 88%, and this diesel version sits 2.7 points below the 83.8% model average.
What it means if you are buying one
The diesel Audi Q3 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 Audi Q3 had covered 78,442 miles at test, against 50,670 for the petrol. That is a shade above the middle of the range, still ordinary wear rather than a red flag, but worth checking against the service book for the car's age.
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 Audi Q3 page separate age from fuel if you want to isolate one.
Other Audi Q3 fuel types
- Petrol Audi Q3 - 88%