Daihatsu Sirion vs Daihatsu Terios ii: reliability comparison
MOT pass rates, common faults and mileage compared from real UK MOT data.
Daihatsu Sirion
77%
MOT pass rate · 16,687 vehicles
Daihatsu Terios ii
33%
MOT pass rate · 1 vehicles
Verdict: On MOT pass rate the Daihatsu Sirion (77%) and Daihatsu Terios ii (33%) are very close — weigh the individual measures below, and remember condition depends on age, mileage and upkeep.
Head to head
| Measure | Daihatsu Sirion | Daihatsu Terios ii |
|---|---|---|
| MOT pass rate | 77% ✓ | 33% |
| MOT failure rate | 23% ✓ | 67% |
| Faults & advisories per test | 1.8 | 0.0 ✓ |
| Dangerous-fault share | 1% | — ✓ |
| Average mileage | 80,054 mi | 93,048 mi |
| Sample size (vehicles) | 16,687 | 1 |
Most common faults
Daihatsu Sirion
- 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)
- Front Brake pad(s) wearing thin (3.5.1g)
- Nearside Rear Tyre worn close to the legal limit (4.1.E.1)
- Offside Rear Brake pipe corroded, covered in grease or other material (1.1.11 (c))
- Front brake disc worn, pitted or scored, but not seriously weakened (3.5.1i)
Daihatsu Terios ii
No fault breakdown available.
Reliability FAQ
On MOT pass rate the Daihatsu Sirion (77%) and Daihatsu Terios ii (33%) are very close — weigh the individual measures below, and remember condition depends on age, mileage and upkeep.
Full Daihatsu Sirion report Full Daihatsu Terios ii 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.