Petrol Mercedes-Benz G: MOT pass rate

92.8% of petrol Mercedes-Benz Gs pass the MOT first time, measured across 1,012 DVSA tests on that fuel type alone. Average mileage at test was 30,244.

Petrol against the other Mercedes-Benz G 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 G specifically, petrol is the strongest at 92.8%, and this petrol version sits 0.4 points above the 92.4% 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 Mercedes-Benz G had covered 30,244 miles at test, against 38,846 for the diesel. That is below average for a car this age, worth a mileage-consistency check since an unusually low reading is sometimes clocking rather than luck.

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

Most common MOT failures on a petrol Mercedes-Benz G

1. Number plate does not conform to the specified requirements, 1.9% of tests (10.09x the national rate for this defect)
2. A tyre seriously damaged, 2.6% of tests
3. Tyre tread depth not in accordance with the requirements, 1.6% of tests
4. A tyre cords visible or damaged, 0.6% of tests
5. The aim of a headlamp is not within limits laid down in the requirements, 0.6% of tests
6. a brake lining or pad worn below 1.5mm, 0.5% of tests
7. Engine MIL illuminated indicating a malfunction, 0.4% of tests
8. A suspension pin, bush or joint excessively worn, 0.3% of tests
9. Windscreen washers not working or not providing sufficient fluid to clear the windscreen, 0.3% of tests
10. Brake lining or pad worn down to wear indicator, 0.2% of tests

From 1,019 DVSA-tracked petrol Mercedes-Benz G tests, 2024, split out from the Mercedes-Benz G's other fuel types. DVSA testers marked 7.52% 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 G

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

1. Tyre tread depth not in accordance with the requirements, 17.4% of tests, also fails
2. a brake lining or pad worn below 1.5mm, 7% of tests, also fails
3. A tyre seriously damaged, 5.9% of tests, also fails
4. A shock absorber damaged to the extent that it does not function or showing signs of severe leakage, 1.2% of tests
5. Brake disc or drum excessively weakened, insecure or fractured, 0.9% of tests
6. A suspension pin, bush or joint excessively worn, 0.8% of tests, also fails
7. Brake disc or drum significantly and obviously worn, 0.8% of tests
8. Fluid leaking excessively and likely to harm the environment or to pose a safety risk to other road users, 0.5% of tests
9. Exhaust system leaking or insecure, 0.2% of tests
10. Power steering fluid leaking or system malfunctioning, 0.2% of tests

From 1,019 DVSA-tracked petrol Mercedes-Benz G tests, 2024.

Other Mercedes-Benz G fuel types

• Diesel Mercedes-Benz G - 91%

All Mercedes-Benz G MOT data · Every model