Petrol Audi Tt: MOT pass rate

79% of petrol Audi Tts pass the MOT first time, measured across 93,907 DVSA tests on that fuel type alone. Average mileage at test was 79,059.

Petrol against the other Audi Tt 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 Tt specifically, diesel is the strongest at 80.9%, and this petrol version sits 0.3 points below the 79.3% 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. 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 Tt had covered 79,059 miles at test, against 90,923 for the diesel. That is a shade above the middle of the range, still ordinary wear rather than a red flag, but worth checking against the service book for the car's age.

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 Tt page separate age from fuel if you want to isolate one.

Most common MOT failures on a petrol Audi Tt

1. A transmission shaft constant velocity joint boot missing or no longer prevents the ingress of dirt etc, 2.4% of tests (1.6x the national rate for this defect)
2. Significant brake effort recorded with no brake applied indicating a binding brake, 1.6% of tests (1.52x the national rate for this defect)
3. Engine MIL illuminated indicating a malfunction, 1.9% of tests (1.5x the national rate for this defect)
4. A suspension joint dust cover missing or no longer prevents the ingress of dirt etc, 2.7% of tests (1.48x the national rate for this defect)
5. A spring or spring component fractured or seriously weakened, 2.7% of tests (1.2x the national rate for this defect)
6. Brake pipe damaged or excessively corroded, 1.3% of tests (1.19x the national rate for this defect)
7. A lamp missing, inoperative or in the case of a multiple light source more than 1/2 not functioning, 2.6% of tests (1.18x the national rate for this defect)
8. Tyre tread depth not in accordance with the requirements, 3.7% of tests
9. A suspension pin, bush or joint excessively worn, 2.6% of tests
10. A tyre seriously damaged, 2.5% of tests

From 94,502 DVSA-tracked petrol Audi Tt tests, 2024, split out from the Audi Tt's other fuel types. DVSA testers marked 4.59% 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 Tt

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

1. A suspension component excessively damaged or corroded, 12% of tests (2.32x the national rate for this defect)
2. A brake hose ferrule excessively corroded, 2.8% of tests (2.17x the national rate for this defect)
3. Product on the lens or light source which obviously reduces light intensity or changes emitted colour to other than white or yellow, 2.1% of tests (1.89x the national rate for this defect)
4. A spring or spring component fractured or seriously weakened, 7% of tests (1.48x the national rate for this defect), also fails
5. Brake pipe damaged or excessively corroded, 8.1% of tests (1.3x the national rate for this defect), also fails
6. Significant brake effort recorded with no brake applied indicating a binding brake, 2.5% of tests (1.25x the national rate for this defect), also fails
7. Tyre tread depth not in accordance with the requirements, 27.8% of tests, also fails
8. A tyre seriously damaged, 14.6% of tests, also fails
9. Brake disc or drum excessively weakened, insecure or fractured, 13.7% of tests
10. A suspension pin, bush or joint excessively worn, 11.3% of tests, also fails

From 94,502 DVSA-tracked petrol Audi Tt tests, 2024.

Other Audi Tt fuel types

• Diesel Audi Tt - 80.9%

All Audi Tt MOT data · Every model