Mazda Bongoo vs Mazda Mx-5: reliability comparison
MOT pass rates, common faults and mileage compared from real UK MOT data.
Mazda Bongoo
68%
MOT pass rate · 7 vehicles
Mazda Mx-5
77%
MOT pass rate · 162,634 vehicles
Verdict: On MOT pass rate the Mazda Bongoo (68%) and Mazda Mx-5 (77%) are very close — weigh the individual measures below, and remember condition depends on age, mileage and upkeep.
Head to head
| Measure | Mazda Bongoo | Mazda Mx-5 |
|---|---|---|
| MOT pass rate | 68% | 77% ✓ |
| MOT failure rate | 32% | 23% ✓ |
| Faults & advisories per test | 2.8 | 1.8 ✓ |
| Dangerous-fault share | 2% | 1% ✓ |
| Average mileage | 148,748 mi | 90,085 mi |
| Sample size (vehicles) | 7 | 162,634 |
Most common faults
Mazda Bongoo
- Oil leak, but not excessive (8.4.1 (a) (i))
- Oil leak
- Rear Brake disc worn, pitted or scored, but not seriously weakened (1.1.14 (a) (ii))
- Rear Brake pad(s) wearing thin (1.1.13 (a) (ii))
- Front Brake pad(s) wearing thin (1.1.13 (a) (ii))
- Nearside Front Tyre worn close to legal limit/worn on edge (5.2.3 (e))
Mazda Mx-5
- Nearside Rear Tyre worn close to the legal limit (4.1.E.1)
- Offside Rear Tyre worn close to the legal limit (4.1.E.1)
- Front Brake pad(s) wearing thin (3.5.1g)
- Rear Brake pad(s) wearing thin (3.5.1g)
- Nearside Front Tyre worn close to the legal limit (4.1.E.1)
- Oil leak, but not excessive (8.4.1 (a) (i))
Reliability FAQ
On MOT pass rate the Mazda Bongoo (68%) and Mazda Mx-5 (77%) are very close — weigh the individual measures below, and remember condition depends on age, mileage and upkeep.
Full Mazda Bongoo report Full Mazda Mx-5 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.