Diesel DS Ds4: MOT pass rate

72.8% of diesel DS Ds4s pass the MOT first time, measured across 3,552 DVSA tests on that fuel type alone. Average mileage at test was 64,158.

Diesel against the other DS Ds4 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 DS Ds4 specifically, petrol is the strongest at 74.3%, and this diesel version sits 0.3 points below the 73.1% 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. 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 DS Ds4 had covered 64,158 miles at test, against 51,433 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 DS Ds4 page separate age from fuel if you want to isolate one.

Most common MOT failures on a diesel DS Ds4

1. A transmission shaft constant velocity joint boot missing or no longer prevents the ingress of dirt etc, 8.7% of tests (5.7x the national rate for this defect)
2. A rear registration plate lamp or light source missing or inoperative in the case of a single lamp or all lamps, 2.6% of tests (2.91x the national rate for this defect)
3. A spring or spring component fractured or seriously weakened, 6% of tests (2.65x the national rate for this defect)
4. Tyre tread depth not in accordance with the requirements, 6.5% of tests (2.03x the national rate for this defect)
5. Brake disc or drum significantly and obviously worn, 1.5% of tests (1.87x the national rate for this defect)
6. Exhaust system leaking or insecure, 1.6% of tests (1.55x the national rate for this defect)
7. A headlamp or light source missing, inoperative or more than ½ not functioning in the case of LED, 1.7% of tests (1.37x the national rate for this defect)
8. a brake lining or pad worn below 1.5mm, 2.8% of tests (1.29x the national rate for this defect)
9. Engine MIL illuminated indicating a malfunction, 1.6% of tests (1.27x the national rate for this defect)
10. A suspension pin, bush or joint excessively worn, 2.7% of tests

From 3,572 DVSA-tracked diesel DS Ds4 tests, 2024, split out from the DS Ds4's other fuel types. DVSA testers marked 7.14% 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 DS Ds4

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

1. A shock absorber which has negligible damping effect, 0.8% of tests (2.32x the national rate for this defect)
2. Brake disc or drum excessively weakened, insecure or fractured, 20.7% of tests (1.69x the national rate for this defect)
3. Tyre tread depth not in accordance with the requirements, 34.8% of tests (1.3x the national rate for this defect), also fails
4. Brake disc or drum significantly and obviously worn, 3.7% of tests (1.16x the national rate for this defect), also fails
5. a brake lining or pad worn below 1.5mm, 10.4% of tests, also fails
6. A tyre seriously damaged, 9.1% of tests
7. A suspension pin, bush or joint excessively worn, 4.8% of tests, also fails
8. Fluid leaking excessively and likely to harm the environment or to pose a safety risk to other road users, 4.2% of tests
9. Number plate inscription missing or illegible, 2% of tests
10. Significant brake effort recorded with no brake applied indicating a binding brake, 1.3% of tests

From 3,572 DVSA-tracked diesel DS Ds4 tests, 2024.

Other DS Ds4 fuel types

• Petrol DS Ds4 - 74.3%

All DS Ds4 MOT data · Every model