Mazda 6 vs Mazda 626 gxi: reliability comparison
MOT pass rates, common faults and mileage compared from real UK MOT data.
Mazda 6
75%
MOT pass rate · 159,403 vehicles
More reliable
Mazda 626 gxi
64%
MOT pass rate · 1,739 vehicles
Verdict: On MOT pass rate, the Mazda 6 is the more reliable of the two — 75% pass first time versus 64%. It's one signal among several; check the full breakdown below.
Head to head
| Measure | Mazda 6 | Mazda 626 gxi |
|---|---|---|
| MOT pass rate | 75% ✓ | 64% |
| MOT failure rate | 25% ✓ | 36% |
| Faults & advisories per test | 1.9 ✓ | 2.1 |
| Dangerous-fault share | 2% | 0% ✓ |
| Average mileage | 113,866 mi | 117,526 mi |
| Sample size (vehicles) | 159,403 | 1,739 |
Most common faults
Mazda 6
- Nearside Front Tyre worn close to the legal limit (4.1.E.1)
- Offside Front Tyre worn close to the legal limit (4.1.E.1)
- Nearside Rear Tyre worn close to the legal limit (4.1.E.1)
- Rear Brake pad(s) wearing thin (3.5.1g)
- Offside Rear Tyre worn close to the legal limit (4.1.E.1)
- Under-trays fitted obscuring some underside components
Mazda 626 gxi
- Parking brake: efficiency below requirements (3.7.B.7)
- 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 Brake hose slightly deteriorated (3.6.B.4d)
- Offside Front Tyre tread depth below requirements of 1.6mm (4.1.E.1)
Reliability FAQ
On MOT pass rate, the Mazda 6 is the more reliable of the two — 75% pass first time versus 64%. It's one signal among several; check the full breakdown below.
Full Mazda 6 report Full Mazda 626 gxi 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.