2009 Daihatsu Sirion: common problems and what to check
What gets flagged at MOT on 2009 Daihatsu Sirions, from 826 tests in 2025, plus known faults and what to look at before you buy one.
What stands out
Parts flagged at MOT more often on 2009 Daihatsu Sirions than on all cars registered in 2009.
- Ball joint3.1× usualDaihatsu Sirion20.2% All 2009 cars6.6%
Failed outright at MOT: 10.7%, against 3.4% of all 2009 cars. The rest were advisories or minor defects.
Rough price £60–£150 (one joint) ClickMechanicAt the viewing: Listen for knocking over bumps and check the rubber boots behind the wheels aren't split.
- Rigid brake pipes2.3× usualDaihatsu Sirion16.9% All 2009 cars7.5%
Failed outright at MOT: 2.8%, against 1.2% of all 2009 cars. The rest were advisories or minor defects.
Rough price £100–£400 our estimateAt the viewing: Ask to see underneath, or check the MOT advisories: corroded brake or fuel pipes get worse every year and fail the MOT when they do.
- Anti-roll bar link joints2.7× usualDaihatsu Sirion11.3% All 2009 cars4.2%
Failed outright at MOT: 4.1%, against 1.6% of all 2009 cars. The rest were advisories or minor defects.
Rough price £60–£150 (one joint) ClickMechanicAt the viewing: Listen for knocking over bumps and check the rubber boots behind the wheels aren't split.
- Headlights1.8× usualDaihatsu Sirion15.3% All 2009 cars8.3%
Failed outright at MOT: 4.5%, against 3.9% of all 2009 cars. The rest were advisories or minor defects.
Rough price £40–£400 our estimateAt the viewing: Check both headlights on dipped and full beam, and look for cloudy or cracked lenses.
- Corroded fuel pipes10.3× usualDaihatsu Sirion6.2% All 2009 cars0.6%
Failed outright at MOT: 0%, against 0% of all 2009 cars. The rest were advisories or minor defects.
Rough price £100–£400 our estimateAt the viewing: Ask to see underneath, or check the MOT advisories: corroded brake or fuel pipes get worse every year and fail the MOT when they do.
Engine oil leaks: 2.5% here, against 10.4% of all 2009 cars. Number plate lights: 3.6% here, against 8.8% of all 2009 cars.
By area
The share of 2009 Daihatsu Sirion MOT tests where testers flagged each area, as a fail or an advisory. Rough prices are typical independent-garage costs.
- Suspension50% of testsRough price £120–£400
At the viewing: Listen for knocks over speed bumps, and look behind each front wheel for a snapped coil spring.
- Brakes33% of testsRough price £150–£350
At the viewing: Look for a lip on the disc edges and feel for judder or pulling when braking firmly from about 40mph.
- Tyres29% of testsRough price £70–£150
At the viewing: Check the tread on all four tyres, including the inside edges, and look for cracks or bulges.
- Lights and electrics28% of testsRough price £10–£80
At the viewing: Ask a friend to check every light, including brake lights and indicators, while you operate them.
- Wipers, windscreen and mirrors12% of testsRough price £15–£250
At the viewing: Check for chips in the driver's view, and test the wipers and washers.
- Rust and bodywork11% of testsRough price £150–£1,000
At the viewing: Check the sills, wheel arches and underneath for rust, and look along the panels for uneven gaps or paint.
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Other years
| Year | MOT tests | Most flagged |
|---|---|---|
| 2008 | 1,635 | Suspension 51% |
| 2007 | 1,204 | Suspension 51% |
| 2006 | 620 | Suspension 60% |
| 2005 | 606 | Suspension 59% |
Where this comes from: the DVSA's anonymised results for every MOT test in Great Britain in 2025, counting tests of 2009 Daihatsu Sirions registered in 2009. "Flagged" includes advisories, so it isn't the same as a fail rate. How we score