Petrol Mercedes-Benz Glc: MOT pass rate

90% of petrol Mercedes-Benz Glcs pass the MOT first time, measured across 11,497 DVSA tests on that fuel type alone. Average mileage at test was 40,637.

Petrol against the other Mercedes-Benz Glc 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 Glc specifically, petrol is the strongest at 90%, and this petrol version sits 1.8 points above the 88.2% model average.

What it means if you are buying one

The petrol Mercedes-Benz Glc 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 Mercedes-Benz Glc had covered 40,637 miles at test, against 55,754 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 Glc page separate age from fuel if you want to isolate one.

Most common MOT failures on a petrol Mercedes-Benz Glc

1. Brake lining or pad worn down to wear indicator, 0.6% of tests (3.05x the national rate for this defect)
2. Number plate does not conform to the specified requirements, 0.4% of tests (2.25x the national rate for this defect)
3. A tyre seriously damaged, 3.4% of tests (1.2x the national rate for this defect)
4. A tyre cords visible or damaged, 2% of tests (1.19x the national rate for this defect)
5. Tyre tread depth not in accordance with the requirements, 2.1% of tests
6. A suspension pin, bush or joint excessively worn, 1.6% of tests
7. a brake lining or pad worn below 1.5mm, 0.9% of tests
8. A transmission shaft constant velocity joint boot missing or no longer prevents the ingress of dirt etc, 0.8% of tests
9. Engine MIL illuminated indicating a malfunction, 0.4% of tests
10. Windscreen washers not working or not providing sufficient fluid to clear the windscreen, 0.3% of tests

From 11,542 DVSA-tracked petrol Mercedes-Benz Glc tests, 2024, split out from the Mercedes-Benz Glc's other fuel types. DVSA testers marked 7.07% 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 Glc

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

1. A transmission shaft flexible coupling excessively deteriorated, 0.5% of tests (8.01x the national rate for this defect)
2. Brake disc or drum significantly and obviously worn, 3.7% of tests (1.16x the national rate for this defect)
3. Tyre tread depth not in accordance with the requirements, 24.9% of tests, also fails
4. A tyre seriously damaged, 14.2% of tests, also fails
5. a brake lining or pad worn below 1.5mm, 10.1% of tests, also fails
6. A suspension pin, bush or joint excessively worn, 5.4% of tests, also fails
7. Brake disc or drum excessively weakened, insecure or fractured, 4.6% of tests
8. Number plate inscription missing or illegible, 1% of tests
9. A shock absorber damaged to the extent that it does not function or showing signs of severe leakage, 0.3% of tests
10. Fluid leaking excessively and likely to harm the environment or to pose a safety risk to other road users, 0.2% of tests

From 11,542 DVSA-tracked petrol Mercedes-Benz Glc tests, 2024.

Other Mercedes-Benz Glc fuel types

• Diesel Mercedes-Benz Glc - 87.8%

All Mercedes-Benz Glc MOT data · Every model