Diesel BMW 114: MOT pass rate
78% of diesel BMW 114s pass the MOT first time, measured across 1,503 DVSA tests on that fuel type alone. Average mileage at test was 100,352.
Diesel against the other BMW 114 versions
| Fuel | Pass rate | Tests |
|---|---|---|
| Petrol | 80% | 1,841 |
| Diesel | 78% | 1,503 |
| All BMW 114 | 79.1% | 3,344 |
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 114 specifically, petrol is the strongest at 80%, and this diesel version sits 1.1 points below the 79.1% model average.
What it means if you are buying one
The diesel BMW 114 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 114 had covered 100,352 miles at test, against 79,300 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 BMW 114 page separate age from fuel if you want to isolate one.
Other BMW 114 fuel types
- Petrol BMW 114 - 80%