Diesel Mercedes-Benz Clc: MOT pass rate

58.7% of diesel Mercedes-Benz Clcs pass the MOT first time, measured across 2,941 DVSA tests on that fuel type alone. Average mileage at test was 115,207.

Diesel against the other Mercedes-Benz Clc versions

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 Clc specifically, petrol is the strongest at 64.5%, and this diesel version sits 3.8 points below the 62.5% model average.

What it means if you are buying one

The diesel Mercedes-Benz Clc 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 diesel Mercedes-Benz Clc had covered 115,207 miles at test, against 92,576 for the petrol. 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 Clc page separate age from fuel if you want to isolate one.

Most common MOT failures on a diesel Mercedes-Benz Clc

1. Lamp emitted colour, position or intensity not in accordance with the requirements, 3.8% of tests (6.36x 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, 3.8% of tests (5.83x the national rate for this defect)
3. A suspension pin, bush or joint excessively worn, 28.5% of tests (5.68x the national rate for this defect)
4. Brake pipe damaged or excessively corroded, 5.8% of tests (5.41x the national rate for this defect)
5. A suspension joint dust cover missing or no longer prevents the ingress of dirt etc, 8.8% of tests (4.77x the national rate for this defect)
6. A spring or spring component fractured or seriously weakened, 9.4% of tests (4.12x the national rate for this defect)
7. A steering ball joint with excessive wear or free play, 4.9% of tests (3.73x the national rate for this defect)
8. Parking brake efficiency below minimum requirement, 4.4% of tests (3.4x the national rate for this defect)
9. Windscreen washers not working or not providing sufficient fluid to clear the windscreen, 5.2% of tests (3.07x the national rate for this defect)
10. Significant brake effort recorded with no brake applied indicating a binding brake, 2.4% of tests (2.35x the national rate for this defect)

From 2,959 DVSA-tracked diesel Mercedes-Benz Clc tests, 2024, split out from the Mercedes-Benz Clc's other fuel types. DVSA testers marked 5.11% 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 diesel Mercedes-Benz Clc

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

1. A wheel bearing with excessive play, 10.2% of tests (15.78x the national rate for this defect)
2. A flexible brake hose excessively damaged, deteriorated, chafed, twisted or stretched, 6.7% of tests (11.94x the national rate for this defect)
3. Brake pipe damaged or excessively corroded, 37.3% of tests (6.03x the national rate for this defect), also fails
4. Lamp emitted colour, position or intensity not in accordance with the requirements, 6% of tests (4.39x the national rate for this defect), also fails
5. A suspension pin, bush or joint excessively worn, 43.6% of tests (3.26x the national rate for this defect), also fails
6. A steering ball joint with excessive wear or free play, 4% of tests (3.02x the national rate for this defect), also fails
7. Significant brake effort recorded with no brake applied indicating a binding brake, 3.3% of tests (1.66x the national rate for this defect), also fails
8. A suspension component excessively damaged or corroded, 7.2% of tests (1.4x the national rate for this defect)
9. Tyre tread depth not in accordance with the requirements, 35.6% of tests (1.33x the national rate for this defect)
10. A spring or spring component fractured or seriously weakened, 5.5% of tests (1.17x the national rate for this defect), also fails

From 2,959 DVSA-tracked diesel Mercedes-Benz Clc tests, 2024.

Other Mercedes-Benz Clc fuel types

• Petrol Mercedes-Benz Clc - 64.5%

All Mercedes-Benz Clc MOT data · Every model