Diesel Audi A6: MOT pass rate
82.1% of diesel Audi A6s pass the MOT first time, measured across 109,526 DVSA tests on that fuel type alone. Average mileage at test was 113,605.
Diesel against the other Audi A6 versions
| Fuel | Pass rate | Tests |
|---|---|---|
| Diesel | 82.1% | 109,526 |
| Petrol | 84.8% | 9,903 |
| All Audi A6 | 82.3% | 119,486 |
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 A6 specifically, petrol is the strongest at 84.8%, and this diesel version sits 0.2 points below the 82.3% 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 A6 had covered 113,605 miles at test, against 82,566 for the petrol. That is high mileage, so timing belts, clutches, suspension bushes and corrosion are the items worth budgeting for rather than the MOT itself.
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 A6 page separate age from fuel if you want to isolate one.
Other Audi A6 fuel types
- Petrol Audi A6 - 84.8%