Diesel Ford Grand C-Max: MOT pass rate
73.1% of diesel Ford Grand C-Max pass the MOT first time, measured across 26,385 DVSA tests on that fuel type alone. Average mileage at test was 86,364.
Diesel against the other Ford Grand C-Max versions
| Fuel | Pass rate | Tests |
|---|---|---|
| Diesel | 73.1% | 26,385 |
| Petrol | 77.2% | 9,469 |
| All Ford Grand C-Max | 74.2% | 35,854 |
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 Grand C-Max specifically, petrol is the strongest at 77.2%, and this diesel version sits 1.1 points below the 74.2% model average.
What it means if you are buying one
The diesel Ford Grand C-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 Grand C-Max had covered 86,364 miles at test, against 67,321 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 Ford Grand C-Max page separate age from fuel if you want to isolate one.
Other Ford Grand C-Max fuel types
- Petrol Ford Grand C-Max - 77.2%