Diesel Audi Q7: MOT pass rate

83.7% of diesel Audi Q7s pass the MOT first time, measured across 40,709 DVSA tests on that fuel type alone. Average mileage at test was 92,209.

Diesel against the other Audi Q7 versions

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 Q7 specifically, petrol is the strongest at 87.9%, and this diesel version sits 0 points above the 83.7% 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 diesel Audi Q7 had covered 92,209 miles at test, against 65,271 for the petrol. 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 Q7 page separate age from fuel if you want to isolate one.

Most common MOT failures on a diesel Audi Q7

1. Brake lining or pad worn down to wear indicator, 0.6% of tests (3.08x the national rate for this defect)
2. An obligatory rear fog lamp missing, or a front or rear fog lamp inoperative or in the case of a multiple light source more than 1/2 not functioning, 0.6% of tests (1.37x the national rate for this defect)
3. Tyre tread depth not in accordance with the requirements, 3.8% of tests (1.19x the national rate for this defect)
4. A spring or spring component fractured or seriously weakened, 2.7% of tests (1.19x the national rate for this defect)
5. A tyre seriously damaged, 3.2% of tests
6. A suspension pin, bush or joint excessively worn, 2.7% of tests
7. A tyre cords visible or damaged, 1.9% of tests
8. Engine MIL illuminated indicating a malfunction, 1.2% of tests
9. Wiper blade missing or obviously not clearing the windscreen, 1.2% of tests
10. a brake lining or pad worn below 1.5mm, 1.1% of tests

From 40,982 DVSA-tracked diesel Audi Q7 tests, 2024, split out from the Audi Q7's other fuel types. DVSA testers marked 6.42% 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 diesel Audi Q7

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

1. Seat belt buckle missing, damaged or not functioning as intended, 0.4% of tests (3.36x the national rate for this defect)
2. A flexible brake hose excessively damaged, deteriorated, chafed, twisted or stretched, 1.2% of tests (2.2x the national rate for this defect)
3. Brake disc or drum significantly and obviously worn, 4.6% of tests (1.44x the national rate for this defect)
4. Fluid leaking excessively and likely to harm the environment or to pose a safety risk to other road users, 7.8% of tests (1.41x the national rate for this defect)
5. a brake lining or pad worn below 1.5mm, 11.6% of tests (1.24x the national rate for this defect), also fails
6. Tyre tread depth not in accordance with the requirements, 31.5% of tests (1.18x the national rate for this defect), also fails
7. A suspension pin, bush or joint excessively worn, 14.3% of tests, also fails
8. Brake disc or drum excessively weakened, insecure or fractured, 9.9% of tests
9. A tyre seriously damaged, 8% of tests, also fails
10. A suspension component excessively damaged or corroded, 3.6% of tests

From 40,982 DVSA-tracked diesel Audi Q7 tests, 2024.

Other Audi Q7 fuel types

• Petrol Audi Q7 - 87.9%

All Audi Q7 MOT data · Every model