Diesel Jeep Wrangler: MOT pass rate
78.6% of diesel Jeep Wranglers pass the MOT first time, measured across 1,914 DVSA tests on that fuel type alone. Average mileage at test was 55,998.
Diesel against the other Jeep Wrangler versions
| Fuel | Pass rate | Tests |
|---|---|---|
| Petrol | 87% | 2,519 |
| Diesel | 78.6% | 1,914 |
| All Jeep Wrangler | 83.4% | 4,435 |
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 Jeep Wrangler specifically, petrol is the strongest at 87%, and this diesel version sits 4.8 points below the 83.4% model average.
What it means if you are buying one
The diesel Jeep Wrangler 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 Jeep Wrangler had covered 55,998 miles at test, against 47,155 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 Jeep Wrangler page separate age from fuel if you want to isolate one.
Other Jeep Wrangler fuel types
- Petrol Jeep Wrangler - 87%