Diesel Hyundai I40: MOT pass rate
76.3% of diesel Hyundai I40s pass the MOT first time, measured across 20,865 DVSA tests on that fuel type alone. Average mileage at test was 98,345.
Diesel against the other Hyundai I40 versions
| Fuel | Pass rate | Tests |
|---|---|---|
| Diesel | 76.3% | 20,865 |
| Petrol | 70.4% | 284 |
| All Hyundai I40 | 76.2% | 21,150 |
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 Hyundai I40 specifically, diesel is the strongest at 76.3%, and this diesel version sits 0.1 points above the 76.2% 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 Hyundai I40 had covered 98,345 miles at test, against 80,936 for the petrol. That is above average and into the range where cambelts and water pumps are due if they have not already been done, so ask for the service history rather than take the mileage on trust.
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 Hyundai I40 page separate age from fuel if you want to isolate one.
Other Hyundai I40 fuel types
- Petrol Hyundai I40 - 70.4%