1999 Daihatsu Sirion: common problems and MOT failures
What MOT testers find on the Daihatsu Sirion first registered in 1999: we looked at the 136 MOTs these cars had during 2023–2025. Plus known faults and what to look at before you buy one.
Small sample: there were only 136 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 1999 Daihatsu Sirion?
Parts flagged at MOT more often on the 1999 Daihatsu Sirion than on all cars registered in 1999.
- Exhaust system2.5× usualDaihatsu Sirion22.8% All 1999 cars9.1%
Failed outright at MOT: 10.3%, against 2.5% of all 1999 cars. The rest were advisories or minor defects.
Rough price £100–£500 (pipe or section) ClickMechanicAt the viewing: Listen for blowing or rattling from underneath at idle, and look for black soot around joints.
Common 1999 Daihatsu Sirion MOT failures and advisories
The share of 1999 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.
- Tyres31% 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.
- Brakes26% 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.
- Exhaust and emissions26% of testsRough price £100–£1,200
At the viewing: Look for black soot in the tailpipe, listen for blowing from the exhaust and check for engine or DPF warning lights.
- Rust and bodywork22% 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.
Questions to ask the seller before buying a 1999 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 exhaust system? (Flagged at MOT 2.5× as often on the 1999 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% |
| 2004 | 305 | Suspension 43% |
| 2003 | 381 | Suspension 43% |
| 2002 | 361 | Suspension 42% |
| 2001 | 212 | Suspension 38% |
| 2000 | 146 | Suspension 49% |
| 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 1999. "Flagged" includes advisories, so it isn't the same as a fail rate. How we score