Diesel Vauxhall Vectra: MOT pass rate

62.1% of diesel Vauxhall Vectras pass the MOT first time, measured across 10,256 DVSA tests on that fuel type alone. Average mileage at test was 136,925.

Diesel against the other Vauxhall Vectra 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 Vectra specifically, diesel is the strongest at 62.1%, and this diesel version sits 0.4 points above the 61.7% 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 Vauxhall Vectra had covered 136,925 miles at test, against 107,432 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 Vauxhall Vectra page separate age from fuel if you want to isolate one.

Most common MOT failures on a diesel Vauxhall Vectra

1. Parking brake inoperative on one side, 3.6% of tests (6.01x the national rate for this defect)
2. Brake pipe damaged or excessively corroded, 5.5% of tests (5.14x the national rate for this defect)
3. Parking brake efficiency below minimum requirement, 5.8% of tests (4.45x the national rate for this defect)
4. Exhaust system leaking or insecure, 3.6% of tests (3.59x the national rate for this defect)
5. The aim of a headlamp is not within limits laid down in the requirements, 7.6% of tests (3.25x the national rate for this defect)
6. A spring or spring component fractured or seriously weakened, 7.3% of tests (3.21x the national rate for this defect)
7. A suspension pin, bush or joint excessively worn, 15.7% of tests (3.13x the national rate for this defect)
8. A transmission shaft constant velocity joint boot missing or no longer prevents the ingress of dirt etc, 4.1% of tests (2.67x the national rate for this defect)
9. A suspension joint dust cover missing or no longer prevents the ingress of dirt etc, 3.9% of tests (2.09x the national rate for this defect)
10. A tyre cords visible or damaged, 3.3% of tests (1.98x the national rate for this defect)

From 10,327 DVSA-tracked diesel Vauxhall Vectra tests, 2024, split out from the Vauxhall Vectra's other fuel types. DVSA testers marked 4.57% 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 Vectra

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

1. A brake hose ferrule excessively corroded, 7.9% of tests (6.22x the national rate for this defect)
2. Product on the lens or light source which obviously reduces light intensity or changes emitted colour to other than white or yellow, 5.6% of tests (5.05x the national rate for this defect)
3. Exhaust system leaking or insecure, 14% of tests (4.91x the national rate for this defect), also fails
4. Lamp emitted colour, position or intensity not in accordance with the requirements, 5% of tests (3.64x the national rate for this defect)
5. A spring or spring component fractured or seriously weakened, 17% of tests (3.6x the national rate for this defect), also fails
6. Brake pipe damaged or excessively corroded, 20.9% of tests (3.37x the national rate for this defect), also fails
7. A suspension component excessively damaged or corroded, 16.3% of tests (3.14x the national rate for this defect)
8. Number plate inscription missing or illegible, 8% of tests (3x the national rate for this defect)
9. A suspension pin, bush or joint excessively worn, 32.7% of tests (2.45x the national rate for this defect), also fails
10. Fluid leaking excessively and likely to harm the environment or to pose a safety risk to other road users, 12.6% of tests (2.26x the national rate for this defect)

From 10,327 DVSA-tracked diesel Vauxhall Vectra tests, 2024.

Other Vauxhall Vectra fuel types

• Petrol Vauxhall Vectra - 61.5%

All Vauxhall Vectra MOT data · Every model