Petrol Audi A6: MOT pass rate

84.8% of petrol Audi A6s pass the MOT first time, measured across 9,903 DVSA tests on that fuel type alone. Average mileage at test was 82,566.

Petrol against the other Audi A6 versions

Why the fuel type changes the number

Petrol cars avoid the DPF and emissions failures that catch diesels, and usually fail on the same consumables as any other car.

On the Audi A6 specifically, petrol is the strongest at 84.8%, and this petrol version sits 2.5 points above the 82.3% model average.

What it means if you are buying one

The petrol Audi A6 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. Buying a damaged one? run it through the analyzer, check the exact car, decode the VIN and check the mileage before you bid.

Mileage is part of the answer

The average petrol Audi A6 had covered 82,566 miles at test, against 113,605 for the diesel. 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 Audi A6 page separate age from fuel if you want to isolate one.

Most common MOT failures on a petrol Audi A6

1. Emissions levels exceed default limits, 0.9% of tests (2.54x the national rate for this defect)
2. Lambda coefficient outside the default limits or the range specified by the manufacturer, 0.9% of tests (1.76x the national rate for this defect)
3. Engine MIL illuminated indicating a malfunction, 1.6% of tests (1.25x the national rate for this defect)
4. A tyre seriously damaged, 3.3% of tests (1.17x the national rate for this defect)
5. A suspension pin, bush or joint excessively worn, 3.6% of tests
6. The aim of a headlamp is not within limits laid down in the requirements, 2.1% of tests
7. Tyre tread depth not in accordance with the requirements, 1.9% of tests
8. A tyre cords visible or damaged, 1.8% of tests
9. a brake lining or pad worn below 1.5mm, 1.2% of tests
10. A transmission shaft constant velocity joint boot missing or no longer prevents the ingress of dirt etc, 1.1% of tests

From 10,002 DVSA-tracked petrol Audi A6 tests, 2024, split out from the Audi A6's other fuel types. DVSA testers marked 4.88% of these flagged defects as "dangerous", against 5.11% nationally. See which fuel type fails on the most dangerous defects nationally for how that compares across the whole fleet.

Most common MOT advisories on a petrol Audi A6

Flagged but doesn't fail the car, a different list from the failures above.

1. A flexible brake hose excessively damaged, deteriorated, chafed, twisted or stretched, 1.7% of tests (2.98x the national rate for this defect)
2. Product on the lens or light source which obviously reduces light intensity or changes emitted colour to other than white or yellow, 1.8% of tests (1.6x the national rate for this defect)
3. A suspension pin, bush or joint excessively worn, 17.2% of tests (1.28x the national rate for this defect), also fails
4. Tyre tread depth not in accordance with the requirements, 23.4% of tests, also fails
5. A tyre seriously damaged, 10.1% of tests, also fails
6. Brake disc or drum excessively weakened, insecure or fractured, 9.5% of tests
7. a brake lining or pad worn below 1.5mm, 8.2% of tests, also fails
8. Fluid leaking excessively and likely to harm the environment or to pose a safety risk to other road users, 6.3% of tests
9. A suspension component excessively damaged or corroded, 3.7% of tests
10. Brake disc or drum significantly and obviously worn, 3.2% of tests

From 10,002 DVSA-tracked petrol Audi A6 tests, 2024.

Other Audi A6 fuel types

• Diesel Audi A6 - 82.1%

All Audi A6 MOT data · Every model