Daihatsu Sirion vs Daihatsu Sirion s: 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 Sirion s
84%
MOT pass rate · 95 vehicles
More reliable
Verdict: On MOT pass rate, the Daihatsu Sirion s is the more reliable of the two — 84% pass first time versus 77%. It's one signal among several; check the full breakdown below.
Head to head
| Measure | Daihatsu Sirion | Daihatsu Sirion s |
|---|---|---|
| MOT pass rate | 77% | 84% ✓ |
| MOT failure rate | 23% | 16% ✓ |
| Faults & advisories per test | 1.8 | 0.0 ✓ |
| Dangerous-fault share | 1% | — ✓ |
| Average mileage | 80,054 mi | 78,150 mi |
| Sample size (vehicles) | 16,687 | 95 |
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 Sirion s
No fault breakdown available.
Reliability FAQ
On MOT pass rate, the Daihatsu Sirion s is the more reliable of the two — 84% pass first time versus 77%. It's one signal among several; check the full breakdown below.
Full Daihatsu Sirion report Full Daihatsu Sirion s 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.