Petrol Mercedes-Benz Ml: MOT pass rate

73% of petrol Mercedes-Benz Mls pass the MOT first time, measured across 2,842 DVSA tests on that fuel type alone. Average mileage at test was 112,809.

Petrol against the other Mercedes-Benz Ml 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 Mercedes-Benz Ml specifically, diesel is the strongest at 77.2%, and this petrol version sits 3.8 points below the 76.8% model average.

What it means if you are buying one

The petrol Mercedes-Benz Ml fails more often than the model average, so budget for the items that catch this fuel type and treat a fresh MOT as worth paying for. 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 Mercedes-Benz Ml had covered 112,809 miles at test, against 110,581 for the diesel. That is high mileage, so timing belts, clutches, suspension bushes and corrosion are the items worth budgeting for rather than the MOT itself.

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 Mercedes-Benz Ml page separate age from fuel if you want to isolate one.

Most common MOT failures on a petrol Mercedes-Benz Ml

1. Lamp emitted colour, position or intensity not in accordance with the requirements, 2.6% of tests (4.37x the national rate for this defect)
2. A direction indicator lamp missing, inoperative or in the case of a multiple light source more than 1/2 not functioning, 2.7% of tests (4.08x the national rate for this defect)
3. Brake pipe damaged or excessively corroded, 4.3% of tests (3.99x the national rate for this defect)
4. A steering ball joint with excessive wear or free play, 3.7% of tests (2.87x the national rate for this defect)
5. Steering rack gaiter or ball joint dust cover missing or no longer prevents the ingress of dirt etc, 2% of tests (2.66x the national rate for this defect)
6. The aim of a headlamp is not within limits laid down in the requirements, 5.1% of tests (2.16x the national rate for this defect)
7. Parking brake efficiency below minimum requirement, 2.7% of tests (2.11x the national rate for this defect)
8. Stop lamp missing, inoperative or in the case of a multiple light source more than 1/2 not functioning, 2.3% of tests (1.68x the national rate for this defect)
9. A spring or spring component fractured or seriously weakened, 3.4% of tests (1.49x the national rate for this defect)
10. A suspension pin, bush or joint excessively worn, 6.8% of tests (1.35x the national rate for this defect)

From 2,882 DVSA-tracked petrol Mercedes-Benz Ml tests, 2024, split out from the Mercedes-Benz Ml's other fuel types. DVSA testers marked 3.61% 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 Mercedes-Benz Ml

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

1. Product on the lens or light source which obviously reduces light intensity or changes emitted colour to other than white or yellow, 6.5% of tests (5.83x the national rate for this defect)
2. Fluid leaking excessively and likely to harm the environment or to pose a safety risk to other road users, 27% of tests (4.85x the national rate for this defect)
3. Lamp emitted colour, position or intensity not in accordance with the requirements, 6% of tests (4.36x the national rate for this defect), also fails
4. Brake pipe damaged or excessively corroded, 25.5% of tests (4.12x the national rate for this defect), also fails
5. Vehicle structure corroded to the extent that the rigidity of the assembly is seriously reduced, 4.7% of tests (3.79x the national rate for this defect)
6. A suspension pin, bush or joint excessively worn, 27% of tests (2.02x the national rate for this defect), also fails
7. A spring or spring component fractured or seriously weakened, 9.1% of tests (1.92x the national rate for this defect), also fails
8. A suspension component excessively damaged or corroded, 9.6% of tests (1.86x the national rate for this defect)
9. Number plate inscription missing or illegible, 4.7% of tests (1.77x the national rate for this defect)
10. a brake lining or pad worn below 1.5mm, 13.8% of tests (1.48x the national rate for this defect)

From 2,882 DVSA-tracked petrol Mercedes-Benz Ml tests, 2024.

Other Mercedes-Benz Ml fuel types

• Diesel Mercedes-Benz Ml - 77.2%

All Mercedes-Benz Ml MOT data · Every model