Daihatsu 4 trak vs Daihatsu Sirion: reliability comparison
MOT pass rates, common faults and mileage compared from real UK MOT data.
Daihatsu 4 trak
75%
MOT pass rate · 2 vehicles
Daihatsu Sirion
77%
MOT pass rate · 16,687 vehicles
Verdict: On MOT pass rate the Daihatsu 4 trak (75%) and Daihatsu Sirion (77%) are very close — weigh the individual measures below, and remember condition depends on age, mileage and upkeep.
Head to head
| Measure | Daihatsu 4 trak | Daihatsu Sirion |
|---|---|---|
| MOT pass rate | 75% | 77% ✓ |
| MOT failure rate | 25% | 23% ✓ |
| Faults & advisories per test | 1.2 ✓ | 1.8 |
| Dangerous-fault share | 0% ✓ | 1% |
| Average mileage | 89,774 mi | 80,054 mi |
| Sample size (vehicles) | 2 | 16,687 |
Most common faults
Daihatsu 4 trak
- 001 n/s outer track rod end slight movement † †002 rear fuel lines corroding
- 001 fuel pipes to rear corroding † †002 front o/s lower side light inoperative
- Nearside Front Windscreen wiper blade deteriorated (8.2.2)
- Offside Front Ball joint has excessive play (2.2.B.1f)
- Offside Front Windscreen wiper blade deteriorated (8.2.2)
- Rear Exhaust has part of the system excessively deteriorated (7.1.1a)
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)
Reliability FAQ
On MOT pass rate the Daihatsu 4 trak (75%) and Daihatsu Sirion (77%) are very close — weigh the individual measures below, and remember condition depends on age, mileage and upkeep.
Full Daihatsu 4 trak report Full Daihatsu Sirion 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.