Daihatsu Sirion — reliability by registration year
2005–2009 · 5 registration years · 4,688 first tests
Registration years
First-attempt MOT results for every Sirion registration year with at least 500 first tests in 2025. Pass rates rise with newer cars, so read a year against its neighbours rather than against the top of the table.
| Year | First tests | First-attempt pass | Incl. PRS | Most common failure |
|---|---|---|---|---|
| 2009 | 790 | 61.1% | 69.4% | Ball joint (front) 25.1% |
| 2008 | 1,563 | 62.1% | 69.5% | Ball joint (front) 23.3% |
| 2007 | 1,153 | 61.6% | 69.4% | Ball joint (front) 24.4% |
| 2006 | 599 | 57.9% | 65.1% | Ball joint (front) 23.0% |
| 2005 | 583 | 52.8% | 61.6% | Ball joint (front) 20.0% |