Petrol Mercedes-Benz Slc: MOT pass rate
89.4% of petrol Mercedes-Benz Slcs pass the MOT first time, measured across 5,474 DVSA tests on that fuel type alone. Average mileage at test was 29,852.
Petrol against the other Mercedes-Benz Slc versions
| Fuel | Pass rate | Tests |
|---|---|---|
| Petrol | 89.4% | 5,474 |
| Diesel | 83.8% | 2,831 |
| All Mercedes-Benz Slc | 87.5% | 8,305 |
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 Slc specifically, petrol is the strongest at 89.4%, and this petrol version sits 1.9 points above the 87.5% model average.
What it means if you are buying one
The petrol Mercedes-Benz Slc 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. 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 Slc had covered 29,852 miles at test, against 42,070 for the diesel. That is low mileage, which usually means light urban use. Short journeys are harder on batteries, brakes and exhausts than motorway miles, so do not assume low miles means low wear.
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 Slc page separate age from fuel if you want to isolate one.
Other Mercedes-Benz Slc fuel types
- Diesel Mercedes-Benz Slc - 83.8%