Diesel Suzuki Swift: MOT pass rate

62.6% of diesel Suzuki Swifts pass the MOT first time, measured across 2,612 DVSA tests on that fuel type alone. Average mileage at test was 98,283.

Diesel against the other Suzuki Swift 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 Suzuki Swift specifically, hybrid is the strongest at 89.8%, and this diesel version sits 15 points below the 77.6% model average.

What it means if you are buying one

The diesel Suzuki Swift 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 Suzuki Swift had covered 98,283 miles at test, against 68,021 for the petrol and 39,280 for the hybrid. That is above average and into the range where cambelts and water pumps are due if they have not already been done, so ask for the service history rather than take the mileage on trust.

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 Suzuki Swift page separate age from fuel if you want to isolate one.

Most common MOT failures on a diesel Suzuki Swift

1. Brake pipe damaged or excessively corroded, 7.4% of tests (6.92x the national rate for this defect)
2. Parking brake efficiency below minimum requirement, 5.2% of tests (3.99x the national rate for this defect)
3. Stop lamp missing, inoperative or in the case of a multiple light source more than 1/2 not functioning, 4.8% of tests (3.54x the national rate for this defect)
4. Significant brake effort recorded with no brake applied indicating a binding brake, 3.4% of tests (3.26x the national rate for this defect)
5. A lamp missing, inoperative or in the case of a multiple light source more than 1/2 not functioning, 6.6% of tests (2.95x the national rate for this defect)
6. A suspension joint dust cover missing or no longer prevents the ingress of dirt etc, 4.7% of tests (2.58x the national rate for this defect)
7. A suspension pin, bush or joint excessively worn, 12.9% of tests (2.56x the national rate for this defect)
8. Engine MIL illuminated indicating a malfunction, 3.3% of tests (2.55x the national rate for this defect)
9. Tyre tread depth not in accordance with the requirements, 5.5% of tests (1.72x the national rate for this defect)
10. A tyre cords visible or damaged, 2.8% of tests (1.67x the national rate for this defect)

From 2,635 DVSA-tracked diesel Suzuki Swift tests, 2024, split out from the Suzuki Swift's other fuel types. DVSA testers marked 4.61% 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 Suzuki Swift

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

1. Brake pipe damaged or excessively corroded, 40.2% of tests (6.5x the national rate for this defect), also fails
2. A brake hose ferrule excessively corroded, 4.9% of tests (3.84x the national rate for this defect)
3. Fluid leaking excessively and likely to harm the environment or to pose a safety risk to other road users, 17.4% of tests (3.13x the national rate for this defect)
4. 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, 4.1% of tests (2.7x the national rate for this defect)
5. Significant brake effort recorded with no brake applied indicating a binding brake, 4.7% of tests (2.36x the national rate for this defect), also fails
6. A suspension pin, bush or joint excessively worn, 26.9% of tests (2.01x the national rate for this defect), also fails
7. A spring or spring component fractured or seriously weakened, 7.9% of tests (1.68x the national rate for this defect)
8. A suspension component excessively damaged or corroded, 7.3% of tests (1.41x the national rate for this defect)
9. Tyre tread depth not in accordance with the requirements, 31.7% of tests (1.19x the national rate for this defect), also fails
10. Number plate inscription missing or illegible, 3.1% of tests (1.16x the national rate for this defect)

From 2,635 DVSA-tracked diesel Suzuki Swift tests, 2024.

Other Suzuki Swift fuel types

• Petrol Suzuki Swift - 77.3%
• Hybrid Suzuki Swift - 89.8%

All Suzuki Swift MOT data · Every model