2006 Daihatsu Sirion MOT pass rate: 66.7% (2,133 tests)
Is the 2006 Sirion getting worse?
Pass rate of 2006-registered cars across recent test years:
| Test year | Pass rate | |
|---|---|---|
| 2023 | 67.5% +3.2 vs same-age |
|
| 2024 | 65.9% +1.8 vs same-age |
|
| 2025 | 66.5% +1.6 vs same-age |
The raw rate normally falls as cars age. The “vs same-age” figure compares this cohort with all UK cars registered in the same year, so normal ageing is not mistaken for a bad model year.
What fails on a 2006 Sirion
| # | System | Defects recorded | Share |
|---|---|---|---|
| 1 | Suspension | 620 | 28.2% |
| 2 | Lamps, reflectors and electrical equipment | 453 | 20.6% |
| 3 | Brakes | 344 | 15.7% |
| 4 | Tyres | 176 | 8.0% |
| 5 | Body, chassis, structure | 172 | 7.8% |
| 6 | Visibility | 143 | 6.5% |
All Sirion years compared
| Registration year | Tests | Pass rate | Vs same-age | Median mileage |
|---|---|---|---|---|
| 2005 | 2,112 | 64.8% | +0.3 pts | 74,424 |
| 2006 (this page) | 2,133 | 66.7% | +2.3 pts | 73,029 |
| 2007 | 4,009 | 69.0% | +3.9 pts | 70,339 |
| 2008 | 5,383 | 70.0% | +4.9 pts | 67,396 |
| 2009 | 2,638 | 72.3% | +5.9 pts | 65,684 |
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FAQs
Is a 2006 Daihatsu Sirion reliable?
2006-registered examples passed 66.7% of their MOT tests (2,133 tests, 2023–2025), +2.3 points versus all UK cars registered in the same year. At roughly 20 years old with a median 73,029 miles, condition now varies car by car — always check the individual MOT history.
What mileage is too high for a 2006 Sirion?
The median tested example shows 73,029 miles. Anything far beyond that isn't automatically bad — a motorway-mile car with consistent service records often beats a low-mileage school-run car — but price accordingly and scrutinise the mileage trail for gaps or drops.
Source: DVSA Anonymised MOT tests and results, 2023–2025 extracts (96 million Class 4 initial tests; retests excluded). Only vehicles old enough for a routine first MOT are included. Age-adjusted figures compare the model-year cohort with all vehicles of the same registration year tested in the same calendar year. Contains public sector information licensed under OGL v3.0.