Mazda 3 vs Mazda X5: 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 X5
75%
MOT pass rate · 3 vehicles
Verdict: On MOT pass rate the Mazda 3 (78%) and Mazda X5 (75%) are very close — weigh the individual measures below, and remember condition depends on age, mileage and upkeep.
Head to head
| Measure | Mazda 3 | Mazda X5 |
|---|---|---|
| MOT pass rate | 78% ✓ | 75% |
| MOT failure rate | 22% ✓ | 25% |
| Faults & advisories per test | 2.0 | 1.8 ✓ |
| Dangerous-fault share | 3% | 0% ✓ |
| Average mileage | 90,915 mi | 129,312 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 X5
- Rear Brake pad(s) wearing thin (3.5.1g)
- Nearside Rear Brake pipe slightly corroded (3.6.B.2c)
- Parking brake lever has little reserve travel (3.1.6b)
- Nearside Rear Anti-roll bar linkage ball joint has slight play (5.3.4 (a) (i))
- Centre Brake pipe slightly corroded (3.6.B.2c)
- Nearside Front Windscreen wiper does not clear the windscreen effectively (8.2.2)
Reliability FAQ
On MOT pass rate the Mazda 3 (78%) and Mazda X5 (75%) are very close — weigh the individual measures below, and remember condition depends on age, mileage and upkeep.
Full Mazda 3 report Full Mazda X5 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.