Petrol Audi A4: MOT pass rate

80.6% of petrol Audi A4s pass the MOT first time, measured across 79,295 DVSA tests on that fuel type alone. Average mileage at test was 80,740.

Petrol against the other Audi A4 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 A4 specifically, petrol is the strongest at 80.6%, and this petrol version sits 3.8 points above the 76.8% model average.

What it means if you are buying one

The petrol Audi A4 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 A4 had covered 80,740 miles at test, against 121,863 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 A4 page separate age from fuel if you want to isolate one.

Most common MOT failures on a petrol Audi A4

1. A flexible brake hose excessively damaged, deteriorated, chafed, twisted or stretched, 0.8% of tests (8.65x the national rate for this defect)
2. A spring or spring component fractured or seriously weakened, 3.9% of tests (1.73x the national rate for this defect)
3. A transmission shaft constant velocity joint boot missing or no longer prevents the ingress of dirt etc, 2.3% of tests (1.51x the national rate for this defect)
4. A tyre seriously damaged, 3.5% of tests (1.24x the national rate for this defect)
5. Tyre tread depth not in accordance with the requirements, 3.9% of tests (1.22x the national rate for this defect)
6. A suspension pin, bush or joint excessively worn, 3.5% of tests
7. The aim of a headlamp is not within limits laid down in the requirements, 2.1% of tests
8. A tyre cords visible or damaged, 1.9% of tests
9. A suspension joint dust cover missing or no longer prevents the ingress of dirt etc, 1.7% of tests
10. Engine MIL illuminated indicating a malfunction, 1.4% of tests

From 79,768 DVSA-tracked petrol Audi A4 tests, 2024, split out from the Audi A4's other fuel types. DVSA testers marked 5.19% 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 A4

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, 3% of tests (5.44x the national rate for this defect), also fails
2. A suspension pin, bush or joint excessively worn, 22% of tests (1.65x the national rate for this defect), also fails
3. Tyre tread depth not in accordance with the requirements, 28.8% of tests, also fails
4. A tyre seriously damaged, 12.9% of tests, also fails
5. Brake disc or drum excessively weakened, insecure or fractured, 10.3% of tests
6. a brake lining or pad worn below 1.5mm, 9.8% of tests
7. Fluid leaking excessively and likely to harm the environment or to pose a safety risk to other road users, 6.2% of tests
8. A spring or spring component fractured or seriously weakened, 5% of tests, also fails
9. A suspension component excessively damaged or corroded, 3.7% of tests
10. A shock absorber damaged to the extent that it does not function or showing signs of severe leakage, 3.6% of tests

From 79,768 DVSA-tracked petrol Audi A4 tests, 2024.

Other Audi A4 fuel types

• Diesel Audi A4 - 75%

All Audi A4 MOT data · Every model