Toyota Aygo vs Toyota Tz: reliability comparison
MOT pass rates, common faults and mileage compared from real UK MOT data.
Toyota Aygo
81%
MOT pass rate · 285,772 vehicles
Toyota Tz
77%
MOT pass rate · 3 vehicles
Verdict: On MOT pass rate the Toyota Aygo (81%) and Toyota Tz (77%) are very close — weigh the individual measures below, and remember condition depends on age, mileage and upkeep.
Head to head
| Measure | Toyota Aygo | Toyota Tz |
|---|---|---|
| MOT pass rate | 81% ✓ | 77% |
| MOT failure rate | 19% ✓ | 23% |
| Faults & advisories per test | 1.7 | 0.9 ✓ |
| Dangerous-fault share | 3% | 0% ✓ |
| Average mileage | 60,869 mi | 198,394 mi |
| Sample size (vehicles) | 285,772 | 3 |
Most common faults
Toyota Aygo
- 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))
- Offside Rear Tyre slightly damaged/cracking or perishing (5.2.3 (d) (ii))
- Nearside Rear Tyre slightly damaged/cracking or perishing (5.2.3 (d) (ii))
- Front Brake disc worn, pitted or scored, but not seriously weakened (1.1.14 (a) (ii))
- Front Brake pad(s) wearing thin (1.1.13 (a) (ii))
Toyota Tz
- Offside Rear parking brake readings low
- Headlamp light source and lamp not compatible (4.1.4 (c))
- Exhaust has a minor leak of exhaust gases mid section (6.1.2 (a))
- Nearside Rear Brake pad(s) wearing thin (3.5.1g)
- Offside Rear Brake pad(s) wearing thin (3.5.1g)
- Child seat fitted not allowing full inspection of adult belt
Reliability FAQ
On MOT pass rate the Toyota Aygo (81%) and Toyota Tz (77%) are very close — weigh the individual measures below, and remember condition depends on age, mileage and upkeep.
Full Toyota Aygo report Full Toyota Tz 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.