Diesel Hyundai I30: MOT pass rate
67.5% of diesel Hyundai I30s pass the MOT first time, measured across 48,313 DVSA tests on that fuel type alone. Average mileage at test was 92,074.
Diesel against the other Hyundai I30 versions
| Fuel | Pass rate | Tests |
|---|---|---|
| Petrol | 74% | 55,172 |
| Diesel | 67.5% | 48,313 |
| All Hyundai I30 | 71% | 103,486 |
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 I30 specifically, petrol is the strongest at 74%, and this diesel version sits 3.5 points below the 71% model average.
What it means if you are buying one
The diesel Hyundai I30 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 Hyundai I30 had covered 92,074 miles at test, against 69,895 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 Hyundai I30 page separate age from fuel if you want to isolate one.
Other Hyundai I30 fuel types
- Petrol Hyundai I30 - 74%