Diesel Chrysler 300 C: MOT pass rate

72.1% of diesel Chrysler 300 Cs pass the MOT first time, measured across 753 DVSA tests on that fuel type alone. Average mileage at test was 116,603.

Diesel against the other Chrysler 300 C 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 Chrysler 300 C specifically, petrol is the strongest at 79.5%, and this diesel version sits 1.8 points below the 73.9% model average.

What it means if you are buying one

The diesel Chrysler 300 C 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 Chrysler 300 C had covered 116,603 miles at test, against 90,787 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 Chrysler 300 C page separate age from fuel if you want to isolate one.

Most common MOT failures on a diesel Chrysler 300 C

1. Parking brake efficiency less than 50% of the required value, 5.7% of tests (15.66x the national rate for this defect)
2. ESC MIL indicates a system malfunction, 2.1% of tests (10.56x the national rate for this defect)
3. Warning device shows system malfunction, 3.2% of tests (7.74x the national rate for this defect)
4. Parking brake inoperative on one side, 4% of tests (6.72x the national rate for this defect)
5. Parking brake efficiency below minimum requirement, 7.7% of tests (5.95x the national rate for this defect)
6. A steering ball joint with excessive wear or free play, 5.6% of tests (4.3x the national rate for this defect)
7. A suspension pin, bush or joint excessively worn, 13.6% of tests (2.71x the national rate for this defect)
8. A lamp missing, inoperative or in the case of a multiple light source more than 1/2 not functioning, 5.6% of tests (2.52x the national rate for this defect)
9. A suspension joint dust cover missing or no longer prevents the ingress of dirt etc, 2.8% of tests (1.52x the national rate for this defect)
10. Tyre tread depth not in accordance with the requirements, 3.9% of tests (1.21x the national rate for this defect)

From 749 DVSA-tracked diesel Chrysler 300 C tests, 2024, split out from the Chrysler 300 C's other fuel types. DVSA testers marked 5.04% 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 Chrysler 300 C

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

1. A steering ball joint with excessive wear or free play, 7.2% of tests (5.41x the national rate for this defect), also fails
2. A wheel bearing with excessive play, 3.1% of tests (4.73x the national rate for this defect)
3. A brake hose ferrule excessively corroded, 3.7% of tests (2.94x the national rate for this defect)
4. Fluid leaking excessively and likely to harm the environment or to pose a safety risk to other road users, 15.6% of tests (2.81x the national rate for this defect)
5. Brake pipe damaged or excessively corroded, 17.2% of tests (2.78x the national rate for this defect)
6. A suspension pin, bush or joint excessively worn, 33.6% of tests (2.52x the national rate for this defect), also fails
7. Significant brake effort recorded with no brake applied indicating a binding brake, 3.6% of tests (1.8x the national rate for this defect)
8. A suspension component excessively damaged or corroded, 7.9% of tests (1.52x the national rate for this defect)
9. Brake disc or drum significantly and obviously worn, 4.7% of tests (1.47x the national rate for this defect)
10. Brake disc or drum excessively weakened, insecure or fractured, 17% of tests (1.38x the national rate for this defect)

From 749 DVSA-tracked diesel Chrysler 300 C tests, 2024.

Other Chrysler 300 C fuel types

• Petrol Chrysler 300 C - 79.5%

All Chrysler 300 C MOT data · Every model