Mazda 3 vs Mazda 3 s diesel: reliability comparison
MOT pass rates, common faults and mileage compared from real UK MOT data.
Mazda 3
78%
MOT pass rate · 164,058 vehicles
Mazda 3 s diesel
—
MOT pass rate · 3 vehicles
Verdict: On MOT pass rate the Mazda 3 (78%) and Mazda 3 s diesel (0%) are very close — weigh the individual measures below, and remember condition depends on age, mileage and upkeep.
Head to head
| Measure | Mazda 3 | Mazda 3 s diesel |
|---|---|---|
| MOT pass rate | 78% ✓ | 0% |
| MOT failure rate | 22% | 0% ✓ |
| Faults & advisories per test | 2.0 | 0.0 ✓ |
| Dangerous-fault share | 3% | — ✓ |
| Average mileage | 90,915 mi | — |
| Sample size (vehicles) | 164,058 | 3 |
Most common faults
Mazda 3
- Nearside Front Tyre worn close to legal limit/worn on edge (5.2.3 (e))
- Offside Front Tyre worn close to legal limit/worn on edge (5.2.3 (e))
- Nearside Front Tyre worn close to the legal limit (4.1.E.1)
- Rear Sub-frame corroded but not seriously weakened (5.3.3 (b) (i))
- Offside Front Tyre worn close to the legal limit (4.1.E.1)
- Front Brake pad(s) wearing thin (1.1.13 (a) (ii))
Mazda 3 s diesel
No fault breakdown available.
Reliability FAQ
On MOT pass rate the Mazda 3 (78%) and Mazda 3 s diesel (0%) are very close — weigh the individual measures below, and remember condition depends on age, mileage and upkeep.
Full Mazda 3 report Full Mazda 3 s diesel report Most reliable cars
Pass rates are computed over completed (pass/fail) MOT tests. Reliability also depends on age, mileage and upkeep — see each model's page for the full picture.