Diesel Audi A8: MOT pass rate
89.8% of diesel Audi A8s pass the MOT first time, measured across 8,809 DVSA tests on that fuel type alone. Average mileage at test was 106,869.
Diesel against the other Audi A8 versions
| Fuel | Pass rate | Tests |
|---|---|---|
| Diesel | 89.8% | 8,809 |
| Petrol | 86.8% | 2,212 |
| All Audi A8 | 89.2% | 11,046 |
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 Audi A8 specifically, diesel is the strongest at 89.8%, and this diesel version sits 0.6 points above the 89.2% model average.
What it means if you are buying one
There is little to choose between fuel types on this model, so decide on running costs and mileage rather than MOT record. Check the exact car, decode the VIN and check the mileage before you bid.
Mileage is part of the answer
The average diesel Audi A8 had covered 106,869 miles at test, against 94,877 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 Audi A8 page separate age from fuel if you want to isolate one.
Other Audi A8 fuel types
- Petrol Audi A8 - 86.8%