Diesel Mercedes-Benz Glc: MOT pass rate
87.8% of diesel Mercedes-Benz Glcs pass the MOT first time, measured across 53,068 DVSA tests on that fuel type alone. Average mileage at test was 55,754.
Diesel against the other Mercedes-Benz Glc versions
| Fuel | Pass rate | Tests |
|---|---|---|
| Diesel | 87.8% | 53,068 |
| Petrol | 90% | 11,497 |
| All Mercedes-Benz Glc | 88.2% | 64,573 |
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 Mercedes-Benz Glc specifically, petrol is the strongest at 90%, and this diesel version sits 0.4 points below the 88.2% 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. Check the exact car, decode the VIN and check the mileage before you bid.
Mileage is part of the answer
The average diesel Mercedes-Benz Glc had covered 55,754 miles at test, against 40,637 for the petrol. That is around average, so condition and service history will tell you more than the odometer does.
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.
Other Mercedes-Benz Glc fuel types
- Petrol Mercedes-Benz Glc - 90%