Diesel Peugeot 308: MOT pass rate
68.5% of diesel Peugeot 308s pass the MOT first time, measured across 87,942 DVSA tests on that fuel type alone. Average mileage at test was 94,532.
Diesel against the other Peugeot 308 versions
| Fuel | Pass rate | Tests |
|---|---|---|
| Diesel | 68.5% | 87,942 |
| Petrol | 74.5% | 43,295 |
| All Peugeot 308 | 70.5% | 131,248 |
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 Peugeot 308 specifically, petrol is the strongest at 74.5%, and this diesel version sits 2 points below the 70.5% model average.
What it means if you are buying one
The diesel Peugeot 308 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 Peugeot 308 had covered 94,532 miles at test, against 62,078 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 Peugeot 308 page separate age from fuel if you want to isolate one.
Other Peugeot 308 fuel types
- Petrol Peugeot 308 - 74.5%