Diesel Alfa Romeo Giulia: MOT pass rate
84.4% of diesel Alfa Romeo Giulias pass the MOT first time, measured across 1,665 DVSA tests on that fuel type alone. Average mileage at test was 63,952.
Diesel against the other Alfa Romeo Giulia versions
| Fuel | Pass rate | Tests |
|---|---|---|
| Petrol | 88.5% | 4,412 |
| Diesel | 84.4% | 1,665 |
| All Alfa Romeo Giulia | 87.4% | 6,077 |
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 Alfa Romeo Giulia specifically, petrol is the strongest at 88.5%, and this diesel version sits 3 points below the 87.4% model average.
What it means if you are buying one
The diesel Alfa Romeo Giulia 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 Alfa Romeo Giulia had covered 63,952 miles at test, against 41,295 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 Alfa Romeo Giulia page separate age from fuel if you want to isolate one.
Other Alfa Romeo Giulia fuel types
- Petrol Alfa Romeo Giulia - 88.5%