Diesel Fiat Stilo: MOT pass rate
56.1% of diesel Fiat Stilos pass the MOT first time, measured across 223 DVSA tests on that fuel type alone. Average mileage at test was 111,560.
Diesel against the other Fiat Stilo versions
| Fuel | Pass rate | Tests |
|---|---|---|
| Petrol | 62.1% | 531 |
| Diesel | 56.1% | 223 |
| All Fiat Stilo | 60.3% | 754 |
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 Fiat Stilo specifically, petrol is the strongest at 62.1%, and this diesel version sits 4.2 points below the 60.3% model average.
What it means if you are buying one
The diesel Fiat Stilo 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 Fiat Stilo had covered 111,560 miles at test, against 87,233 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 Fiat Stilo page separate age from fuel if you want to isolate one.
Other Fiat Stilo fuel types
- Petrol Fiat Stilo - 62.1%