Mazda 3 vs Mazda 323 lxi: reliability comparison
MOT pass rates, common faults and mileage compared from real UK MOT data.
Mazda 3
78%
MOT pass rate · 164,058 vehicles
More reliable
Mazda 323 lxi
62%
MOT pass rate · 2,416 vehicles
Verdict: On MOT pass rate, the Mazda 3 is the more reliable of the two — 78% pass first time versus 62%. It's one signal among several; check the full breakdown below.
Head to head
| Measure | Mazda 3 | Mazda 323 lxi |
|---|---|---|
| MOT pass rate | 78% ✓ | 62% |
| MOT failure rate | 22% ✓ | 38% |
| Faults & advisories per test | 2.0 ✓ | 2.3 |
| Dangerous-fault share | 3% | 0% ✓ |
| Average mileage | 90,915 mi | 105,217 mi |
| Sample size (vehicles) | 164,058 | 2,416 |
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 323 lxi
- Offside Front Tyre worn close to the legal limit (4.1.E.1)
- Nearside Front Tyre worn close to the legal limit (4.1.E.1)
- Nearside Front Tyre tread depth below requirements of 1.6mm (4.1.E.1)
- Offside Front Tyre tread depth below requirements of 1.6mm (4.1.E.1)
- Exhaust has part of the system slightly deteriorated (7.1.1a)
- Nearside Front position lamp(s) not working (1.1.A.3b)
Reliability FAQ
On MOT pass rate, the Mazda 3 is the more reliable of the two — 78% pass first time versus 62%. It's one signal among several; check the full breakdown below.
Full Mazda 3 report Full Mazda 323 lxi 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.