Diesel Peugeot 807: MOT pass rate

55.1% of diesel Peugeot 807s pass the MOT first time, measured across 790 DVSA tests on that fuel type alone. Average mileage at test was 126,542.

Diesel against the other Peugeot 807 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 Peugeot 807 specifically, petrol is the strongest at 56.7%, and this diesel version sits 0.3 points below the 55.4% 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 Peugeot 807 had covered 126,542 miles at test, against 101,019 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 Peugeot 807 page separate age from fuel if you want to isolate one.

Most common MOT failures on a diesel Peugeot 807

1. Parking brake inoperative on one side, 8.4% of tests (14.05x the national rate for this defect)
2. Parking brake efficiency less than 50% of the required value, 4.4% of tests (11.93x the national rate for this defect)
3. The strength or continuity of the load bearing structure within 30cm of any sub-frame, spring or suspension component mounting (a 'prescribed area') is significantly reduced or inadequately repaired, 10.4% of tests (10.99x the national rate for this defect)
4. Vehicle structure corroded to the extent that the rigidity of the assembly is seriously reduced, 4.4% of tests (10.58x the national rate for this defect)
5. Parking brake efficiency below minimum requirement, 12.9% of tests (9.89x the national rate for this defect)
6. Exhaust system leaking or insecure, 6.1% of tests (6.05x the national rate for this defect)
7. A lamp missing, inoperative or in the case of a multiple light source more than 1/2 not functioning, 10.8% of tests (4.83x the national rate for this defect)
8. Stop lamp missing, inoperative or in the case of a multiple light source more than 1/2 not functioning, 6.5% of tests (4.77x the national rate for this defect)
9. A steering ball joint with excessive wear or free play, 5.8% of tests (4.41x the national rate for this defect)
10. A transmission shaft constant velocity joint boot missing or no longer prevents the ingress of dirt etc, 4.6% of tests (3.02x the national rate for this defect)

From 800 DVSA-tracked diesel Peugeot 807 tests, 2024, split out from the Peugeot 807's other fuel types. DVSA testers marked 4.53% 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 Peugeot 807

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

1. Lamp emitted colour, position or intensity not in accordance with the requirements, 7.9% of tests (5.75x the national rate for this defect)
2. The strength or continuity of the load bearing structure within 30cm of any sub-frame, spring or suspension component mounting (a 'prescribed area') is significantly reduced or inadequately repaired, 7.4% of tests (4.86x the national rate for this defect), also fails
3. Fluid leaking excessively and likely to harm the environment or to pose a safety risk to other road users, 22.5% of tests (4.05x the national rate for this defect)
4. Exhaust system leaking or insecure, 9.8% of tests (3.43x the national rate for this defect), also fails
5. A steering ball joint with excessive wear or free play, 4% of tests (3x the national rate for this defect), also fails
6. A spring or spring component fractured or seriously weakened, 12.3% of tests (2.59x the national rate for this defect)
7. A suspension component excessively damaged or corroded, 10.9% of tests (2.1x the national rate for this defect)
8. Significant brake effort recorded with no brake applied indicating a binding brake, 4.1% of tests (2.06x the national rate for this defect)
9. Brake disc or drum excessively weakened, insecure or fractured, 20.5% of tests (1.67x the national rate for this defect)
10. Brake pipe damaged or excessively corroded, 10.1% of tests (1.64x the national rate for this defect)

From 800 DVSA-tracked diesel Peugeot 807 tests, 2024.

Other Peugeot 807 fuel types

• Petrol Peugeot 807 - 56.7%

All Peugeot 807 MOT data · Every model