Diesel Peugeot 307: MOT pass rate

56.3% of diesel Peugeot 307s pass the MOT first time, measured across 10,537 DVSA tests on that fuel type alone. Average mileage at test was 122,298.

Diesel against the other Peugeot 307 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 307 specifically, petrol is the strongest at 58.8%, and this diesel version sits 1.6 points below the 57.9% model average.

What it means if you are buying one

The diesel Peugeot 307 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 Peugeot 307 had covered 122,298 miles at test, against 92,527 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 307 page separate age from fuel if you want to isolate one.

Most common MOT failures on a diesel Peugeot 307

1. Steering rack gaiter or ball joint dust cover missing or no longer prevents the ingress of dirt etc, 4.8% of tests (6.39x 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, 5.8% of tests (6.15x the national rate for this defect)
3. A transmission shaft constant velocity joint boot missing or no longer prevents the ingress of dirt etc, 7.8% of tests (5.11x the national rate for this defect)
4. A lamp missing, inoperative or in the case of a multiple light source more than 1/2 not functioning, 10.1% of tests (4.55x the national rate for this defect)
5. A steering ball joint with excessive wear or free play, 5.7% of tests (4.36x the national rate for this defect)
6. The aim of a headlamp is not within limits laid down in the requirements, 8.6% of tests (3.68x 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, 4.4% of tests (3.61x 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, 4.8% of tests (3.53x the national rate for this defect)
9. Parking brake efficiency below minimum requirement, 4.3% of tests (3.32x the national rate for this defect)
10. A suspension joint dust cover missing or no longer prevents the ingress of dirt etc, 5.5% of tests (3.01x the national rate for this defect)

From 10,640 DVSA-tracked diesel Peugeot 307 tests, 2024, split out from the Peugeot 307's other fuel types. DVSA testers marked 3.79% 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 307

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

1. A shock absorber bush excessively worn, 5.3% of tests (11.04x the national rate for this defect)
2. A stub axle swivel pin and/or bush excessively worn, 5% of tests (7.85x the national rate for this defect)
3. A steering ball joint with excessive wear or free play, 8.6% of tests (6.43x the national rate for this defect), also fails
4. Product on the lens or light source which obviously reduces light intensity or changes emitted colour to other than white or yellow, 6.3% of tests (5.72x the national rate for this defect)
5. 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, 7.2% of tests (4.77x the national rate for this defect), also fails
6. A brake hose ferrule excessively corroded, 5.5% of tests (4.3x the national rate for this defect)
7. Significant brake effort recorded with no brake applied indicating a binding brake, 7.3% of tests (3.64x the national rate for this defect)
8. Fluid leaking excessively and likely to harm the environment or to pose a safety risk to other road users, 15.5% of tests (2.79x the national rate for this defect)
9. A suspension pin, bush or joint excessively worn, 37.1% of tests (2.78x the national rate for this defect)
10. A spring or spring component fractured or seriously weakened, 12.6% of tests (2.67x the national rate for this defect)

From 10,640 DVSA-tracked diesel Peugeot 307 tests, 2024.

Other Peugeot 307 fuel types

• Petrol Peugeot 307 - 58.8%

All Peugeot 307 MOT data · Every model