Diesel Ford B-Max: MOT pass rate
70.6% of diesel Ford B-Max pass the MOT first time, measured across 8,577 DVSA tests on that fuel type alone. Average mileage at test was 73,554.
Diesel against the other Ford B-Max versions
| Fuel | Pass rate | Tests |
|---|---|---|
| Petrol | 79.1% | 45,867 |
| Diesel | 70.6% | 8,577 |
| All Ford B-Max | 77.8% | 54,445 |
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 Ford B-Max specifically, petrol is the strongest at 79.1%, and this diesel version sits 7.2 points below the 77.8% model average.
What it means if you are buying one
The diesel Ford B-Max 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 Ford B-Max had covered 73,554 miles at test, against 52,523 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 Ford B-Max page separate age from fuel if you want to isolate one.
Other Ford B-Max fuel types
- Petrol Ford B-Max - 79.1%