Diesel Fiat Doblo: MOT pass rate
68.7% of diesel Fiat Doblos pass the MOT first time, measured across 36,606 DVSA tests on that fuel type alone. Average mileage at test was 90,967.
Diesel against the other Fiat Doblo versions
| Fuel | Pass rate | Tests |
|---|---|---|
| Diesel | 68.7% | 36,606 |
| Petrol | 74.2% | 6,127 |
| All Fiat Doblo | 69.5% | 42,739 |
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 Doblo specifically, petrol is the strongest at 74.2%, and this diesel version sits 0.8 points below the 69.5% model average.
What it means if you are buying one
There is little to choose between fuel types on this model, so decide on running costs and mileage rather than MOT record. Check the exact car, decode the VIN and check the mileage before you bid.
Mileage is part of the answer
The average diesel Fiat Doblo had covered 90,967 miles at test, against 57,760 for the petrol. That is above average, the point where suspension bushes, drop links and exhaust corrosion start showing up as advisories before they become failures.
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 Doblo page separate age from fuel if you want to isolate one.
Other Fiat Doblo fuel types
- Petrol Fiat Doblo - 74.2%