2004 Daihatsu Sirion: common problems and MOT failures
What MOT testers find on the Daihatsu Sirion first registered in 2004: we looked at the 305 MOTs these cars had during 2023–2025. Plus known faults and what to look at before you buy one.
Small sample: there were only 305 MOTs of these cars during 2023–2025, so treat the percentages as rough. The known faults below don't depend on it.
What goes wrong more than usual on a 2004 Daihatsu Sirion?
Parts flagged at MOT more often on the 2004 Daihatsu Sirion than on all cars registered in 2004.
- Rust around suspension or steering mountings3.3× usualDaihatsu Sirion20% All 2004 cars6.1%
Failed outright at MOT: 11.5%, against 2.9% of all 2004 cars. The rest were advisories or minor defects.
Rough price £100–£450 our estimateAt the viewing: On a straight road the steering wheel should sit straight. Listen for knocks when turning, and check the steering feels even.
- Corroded fuel pipes14× usualDaihatsu Sirion9.8% All 2004 cars0.7%
Failed outright at MOT: 0%, against 0% of all 2004 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.
- Ball joint dust cover2.3× usualDaihatsu Sirion10.8% All 2004 cars4.7%
Failed outright at MOT: 2.3%, against 1.8% of all 2004 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.
Common 2004 Daihatsu Sirion MOT failures and advisories
The share of 2004 Daihatsu Sirion MOT tests where testers flagged each area, as a fail or an advisory. Rough prices are typical independent-garage costs.
- Suspension43% 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.
- Brakes38% 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.
- Lights and electrics31% of testsRough price £10–£80
At the viewing: Ask a friend to check every light, including brake lights and indicators, while you operate them.
- Tyres28% 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.
- Rust and bodywork21% 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.
- 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.
Questions to ask the seller before buying a 2004 Daihatsu Sirion
Ask before you travel to see it. A seller who knows the car will have answers, and receipts.
- Any recent work on the rust around suspension or steering mountings? (Flagged at MOT 3.3× as often on the 2004 Daihatsu Sirion as on other cars the same age.)
- Any recent work on the corroded fuel pipes? (Flagged at MOT 14× as often on the 2004 Daihatsu Sirion as on other cars the same age.)
- Any recent work on the ball joint dust cover? (Flagged at MOT 2.3× as often on the 2004 Daihatsu Sirion as on other cars the same age.)
- Can I see the service history and receipts for any big jobs?
Looking at a Daihatsu Sirion?
Check the actual car: its own MOT history, mileage and what to ask the seller. Free, no sign-up.
Other years
Every year of the Daihatsu Sirion compared
| Year | MOT tests | Most flagged |
|---|---|---|
| 2010 | 333 | Suspension 50% |
| 2009 | 2,649 | Suspension 45% |
| 2008 | 5,420 | Suspension 48% |
| 2007 | 4,040 | Suspension 51% |
| 2006 | 2,144 | Suspension 55% |
| 2005 | 2,124 | Suspension 57% |
| 2003 | 381 | Suspension 43% |
| 2002 | 361 | Suspension 42% |
| 2001 | 212 | Suspension 38% |
| 2000 | 146 | Suspension 49% |
| 1999 | 136 | Suspension 43% |
| 1998 | – | Too few tests |
Where this comes from: the DVSA's anonymised results for every MOT test done in Great Britain during 2023–2025, counting the MOTs of Daihatsu Sirion cars first registered in 2004. "Flagged" includes advisories, so it isn't the same as a fail rate. How we score