Petrol BMW 6 Series: MOT pass rate
87.5% of petrol BMW 6 Series pass the MOT first time, measured across 1,558 DVSA tests on that fuel type alone. Average mileage at test was 69,131.
Petrol against the other BMW 6 Series versions
| Fuel | Pass rate | Tests |
|---|---|---|
| Diesel | 85.8% | 3,565 |
| Petrol | 87.5% | 1,558 |
| All BMW 6 Series | 86.3% | 5,124 |
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 BMW 6 Series specifically, petrol is the strongest at 87.5%, and this petrol version sits 1.2 points above the 86.3% model average.
What it means if you are buying one
The petrol BMW 6 Series 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 BMW 6 Series had covered 69,131 miles at test, against 72,514 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 BMW 6 Series page separate age from fuel if you want to isolate one.
Most common MOT failures on a petrol BMW 6 Series
- A tyre seriously damaged, 3.6% of tests (1.3x the national rate for this defect)
- Tyre tread depth not in accordance with the requirements, 2.1% of tests
- A tyre cords visible or damaged, 1.5% of tests
- A headlamp or light source missing, inoperative or more than ½ not functioning in the case of LED, 1.1% of tests
- A transmission shaft constant velocity joint boot missing or no longer prevents the ingress of dirt etc, 1.1% of tests
- A suspension pin, bush or joint excessively worn, 1% of tests
- A lamp missing, inoperative or in the case of a multiple light source more than 1/2 not functioning, 1% of tests
- Brake pipe damaged or excessively corroded, 0.8% of tests
- A spring or spring component fractured or seriously weakened, 0.7% of tests
- Windscreen washers not working or not providing sufficient fluid to clear the windscreen, 0.7% of tests
From 1,573 DVSA-tracked petrol BMW 6 Series tests, 2024, split out from the BMW 6 Series's other fuel types. DVSA testers marked 6.55% 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 BMW 6 Series
Flagged but doesn't fail the car, a different list from the failures above.
- A transmission shaft flexible coupling excessively deteriorated, 2.2% of tests (33.88x the national rate for this defect)
- Tyre tread depth not in accordance with the requirements, 21.2% of tests, also fails
- A tyre seriously damaged, 8.4% of tests, also fails
- a brake lining or pad worn below 1.5mm, 7.3% of tests
- A suspension pin, bush or joint excessively worn, 6.2% of tests, also fails
- Fluid leaking excessively and likely to harm the environment or to pose a safety risk to other road users, 5.8% of tests
- Brake disc or drum excessively weakened, insecure or fractured, 5% of tests
- Brake pipe damaged or excessively corroded, 4.6% of tests, also fails
- Brake disc or drum significantly and obviously worn, 2.4% of tests
- A shock absorber damaged to the extent that it does not function or showing signs of severe leakage, 1.4% of tests
From 1,573 DVSA-tracked petrol BMW 6 Series tests, 2024.
Other BMW 6 Series fuel types
- Diesel BMW 6 Series - 85.8%