Diesel BMW X1: MOT pass rate
83% of diesel BMW X1s pass the MOT first time, measured across 71,633 DVSA tests on that fuel type alone. Average mileage at test was 75,982.
Diesel against the other BMW X1 versions
| Fuel | Pass rate | Tests |
|---|---|---|
| Diesel | 83% | 71,633 |
| Petrol | 91.3% | 32,799 |
| All BMW X1 | 85.6% | 104,439 |
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 BMW X1 specifically, petrol is the strongest at 91.3%, and this diesel version sits 2.6 points below the 85.6% model average.
What it means if you are buying one
The diesel BMW X1 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 BMW X1 had covered 75,982 miles at test, against 35,675 for the petrol. That is a shade above the middle of the range, still ordinary wear rather than a red flag, but worth checking against the service book for the car's age.
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 BMW X1 page separate age from fuel if you want to isolate one.
Other BMW X1 fuel types
- Petrol BMW X1 - 91.3%