Diesel Vauxhall Cascada: MOT pass rate

78.6% of diesel Vauxhall Cascadas pass the MOT first time, measured across 1,424 DVSA tests on that fuel type alone. Average mileage at test was 70,798.

Diesel against the other Vauxhall Cascada 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 Vauxhall Cascada specifically, petrol is the strongest at 80.7%, and this diesel version sits 1 points below the 79.6% model average.

What it means if you are buying one

The diesel Vauxhall Cascada 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 Vauxhall Cascada had covered 70,798 miles at test, against 51,278 for the petrol. That is a shade above the middle of the range, still ordinary wear rather than a red flag, but worth checking against the service book for the car's age.

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 Vauxhall Cascada page separate age from fuel if you want to isolate one.

Most common MOT failures on a diesel Vauxhall Cascada

1. A spring or spring component fractured or seriously weakened, 7.5% of tests (3.28x the national rate for this defect)
2. a brake lining or pad worn below 1.5mm, 5.2% of tests (2.44x the national rate for this defect)
3. A tyre cords visible or damaged, 2.4% of tests (1.41x the national rate for this defect)
4. Tyre tread depth not in accordance with the requirements, 2.9% of tests
5. A tyre seriously damaged, 2.8% of tests
6. Engine MIL illuminated indicating a malfunction, 1.3% of tests
7. A headlamp or light source missing, inoperative or more than ½ not functioning in the case of LED, 1.3% of tests
8. Wiper blade missing or obviously not clearing the windscreen, 1.3% of tests
9. Windscreen washers not working or not providing sufficient fluid to clear the windscreen, 1.1% of tests
10. The aim of a headlamp is not within limits laid down in the requirements, 1.1% of tests

From 1,432 DVSA-tracked diesel Vauxhall Cascada tests, 2024, split out from the Vauxhall Cascada's other fuel types. DVSA testers marked 8.64% 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 Vauxhall Cascada

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

1. Brake disc or drum significantly and obviously worn, 4.7% of tests (1.47x the national rate for this defect)
2. a brake lining or pad worn below 1.5mm, 13.6% of tests (1.46x the national rate for this defect), also fails
3. A spring or spring component fractured or seriously weakened, 6.6% of tests (1.39x the national rate for this defect), also fails
4. Significant brake effort recorded with no brake applied indicating a binding brake, 2.4% of tests (1.19x the national rate for this defect)
5. Tyre tread depth not in accordance with the requirements, 29.7% of tests, also fails
6. A tyre seriously damaged, 16.3% of tests, also fails
7. Brake disc or drum excessively weakened, insecure or fractured, 8.9% of tests
8. Brake pipe damaged or excessively corroded, 3.2% of tests
9. A shock absorber damaged to the extent that it does not function or showing signs of severe leakage, 2.9% of tests
10. A suspension pin, bush or joint excessively worn, 2.8% of tests

From 1,432 DVSA-tracked diesel Vauxhall Cascada tests, 2024.

Other Vauxhall Cascada fuel types

• Petrol Vauxhall Cascada - 80.7%

All Vauxhall Cascada MOT data · Every model