Diesel Alfa Romeo Brera: MOT pass rate

64.7% of diesel Alfa Romeo Breras pass the MOT first time, measured across 541 DVSA tests on that fuel type alone. Average mileage at test was 113,594.

Diesel against the other Alfa Romeo Brera 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 Alfa Romeo Brera specifically, petrol is the strongest at 71.6%, and this diesel version sits 4.8 points below the 69.5% model average.

What it means if you are buying one

The diesel Alfa Romeo Brera 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 Alfa Romeo Brera had covered 113,594 miles at test, against 85,980 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 Alfa Romeo Brera page separate age from fuel if you want to isolate one.

Most common MOT failures on a diesel Alfa Romeo Brera

1. Smoke opacity levels exceed the manufacturer's specified limit, 3.3% of tests (12.4x the national rate for this defect)
2. A suspension component excessively damaged or corroded, 3% of tests (8.46x the national rate for this defect)
3. A spring or spring component fractured or seriously weakened, 12.2% of tests (5.35x the national rate for this defect)
4. Significant brake effort recorded with no brake applied indicating a binding brake, 5% of tests (4.81x the national rate for this defect)
5. Parking brake efficiency below minimum requirement, 5.9% of tests (4.54x the national rate for this defect)
6. Exhaust system leaking or insecure, 4.1% of tests (4.02x the national rate for this defect)
7. Windscreen washers not working or not providing sufficient fluid to clear the windscreen, 3% of tests (1.75x the national rate for this defect)
8. A suspension pin, bush or joint excessively worn, 8.1% of tests (1.62x the national rate for this defect)
9. Tyre tread depth not in accordance with the requirements, 4.3% of tests (1.33x the national rate for this defect)
10. A lamp missing, inoperative or in the case of a multiple light source more than 1/2 not functioning, 2.6% of tests (1.16x the national rate for this defect)

From 541 DVSA-tracked diesel Alfa Romeo Brera tests, 2024, split out from the Alfa Romeo Brera's other fuel types. DVSA testers marked 4.62% 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 Alfa Romeo Brera

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

1. Significant brake effort recorded with no brake applied indicating a binding brake, 11.5% of tests (5.74x the national rate for this defect), also fails
2. A suspension component excessively damaged or corroded, 27.9% of tests (5.39x the national rate for this defect), also fails
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, 6.8% of tests (4.5x the national rate for this defect)
4. Excessive fluctuation in brake effort through each wheel revolution., 3.3% of tests (3.93x the national rate for this defect)
5. Vehicle structure corroded to the extent that the rigidity of the assembly is seriously reduced, 4.4% of tests (3.57x the national rate for this defect)
6. Exhaust system leaking or insecure, 10% of tests (3.51x the national rate for this defect), also fails
7. Fluid leaking excessively and likely to harm the environment or to pose a safety risk to other road users, 16.6% of tests (2.99x the national rate for this defect)
8. Lamp emitted colour, position or intensity not in accordance with the requirements, 3.1% of tests (2.29x the national rate for this defect)
9. A suspension pin, bush or joint excessively worn, 27.2% of tests (2.03x the national rate for this defect), also fails
10. Tyre tread depth not in accordance with the requirements, 37.3% of tests (1.4x the national rate for this defect), also fails

From 541 DVSA-tracked diesel Alfa Romeo Brera tests, 2024.

Other Alfa Romeo Brera fuel types

• Petrol Alfa Romeo Brera - 71.6%

All Alfa Romeo Brera MOT data · Every model