Diesel Mazda 5: MOT pass rate
61.5% of diesel Mazda 5s pass the MOT first time, measured across 2,877 DVSA tests on that fuel type alone. Average mileage at test was 103,568.
Diesel against the other Mazda 5 versions
| Fuel | Pass rate | Tests |
|---|---|---|
| Petrol | 58.9% | 7,648 |
| Diesel | 61.5% | 2,877 |
| All Mazda 5 | 59.6% | 10,531 |
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 Mazda 5 specifically, diesel is the strongest at 61.5%, and this diesel version sits 1.9 points above the 59.6% model average.
What it means if you are buying one
The diesel Mazda 5 is the stronger side of this model on MOT data. Still judge the individual car, but the fuel type is a mild point in its favour. Check the exact car, decode the VIN and check the mileage before you bid.
Mileage is part of the answer
The average diesel Mazda 5 had covered 103,568 miles at test, against 104,878 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 Mazda 5 page separate age from fuel if you want to isolate one.
Other Mazda 5 fuel types
- Petrol Mazda 5 - 58.9%