MOT data by first-use year
2007 Daihatsu Sirion: MOT fail rate and common problems
DVSA MOT tests 2022–2025 · 5,736 MOT tests · Updated
37.8% of 2007 Daihatsu Sirion cars failed their MOT at 18 years; measured against vehicles the same age and test year, about the same as the 2008 cars (4,530 MOT tests) [1].
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- −7.6 to −4.4 points: the gap to all class 4 vehicles the same age and test year, from 15 to 18 years, 5,736 MOT tests
- At 18 years (tested 2025): 37.8% failed, against 42.2% for all class 4 vehicles tested at 18 years in 2025, 1,206 MOT tests
- At 17 years (tested 2024): 39.8% failed, against 42.7% for all class 4 vehicles tested at 17 years in 2024, 1,356 MOT tests
Engine, fuel and mileage decide where one vehicle sits within these figures. Check the reg first.
Figures are for 2007 Daihatsu Sirion cars as a group, not for one car.
- Fail rate at 18 years (2025)
- 37.8%
- vs 42.2% for all class 4 vehicles tested at 18 years in 2025
- 1,206 MOT tests
- Gap to all class 4, same age and year
- −5.3 pts
- over ages 15–18: −7.7 to −2.9 pts
- 5,736 MOT tests
- Against the 2008 cars
- +0.2 pts
- 95% range −3.1 to +3.4 pts, same ages, each against its own test year
- 4,530 MOT tests
- MOT tests of 2007 cars
- 5,736
- tested 2022–2025, 4 ages with 1,000+ tests
- 5,736 MOT tests
About the same as the 2008 cars: +0.2 points at the same ages (15–17), each year against all class 4 vehicles the same age tested in its own year; 95% range −3.1 to +3.4, from 4,530 MOT tests of 2007 cars and 5,490 of the 2008 cars. Not adjusted for mileage.
Every Daihatsu Sirion year against all class 4 vehicles the same age
2007 Daihatsu Sirion fail rate at each MOT
From 2022 to 2025, as these cars went from 15 to 18 years old, the fail rate went from 34.8% to 37.8%, and the gap to all class 4 vehicles the same age and test year from −7.6 to −4.4 points. The widest gap was at 15 years (−7.6 points, 1,636 MOT tests).
| Test year | Age | Fail rate | 95% range | MOT tests | All class 4, same age and year | Gap |
|---|---|---|---|---|---|---|
| 2022 | 15 years | 34.8% | 32.5%–37.1% | 1,636 | 42.4% | −7.6 pts |
| 2023 | 16 years | 36.9% | 34.5%–39.3% | 1,538 | 42.6% | −5.7 pts |
| 2024 | 17 years | 39.8% | 37.2%–42.5% | 1,356 | 42.7% | −2.9 pts |
| 2025 | 18 years | 37.8% | 35.1%–40.6% | 1,206 | 42.2% | −4.4 pts |
All class 4: every class 4 vehicle (cars and light vans) tested at that age in the same test year.
2007 against the 2008 cars, age by age
| Age | 2007 | Years either side |
|---|---|---|
| 15 years | 34.8% 1,636 MOT tests, tested 2022 | 2008: 35.4% (2,003, tested 2023) |
| 16 years | 36.9% 1,538 MOT tests, tested 2023 | 2008: 37.8% (1,850, tested 2024) |
| 17 years | 39.8% 1,356 MOT tests, tested 2024 | 2008: 37.0% (1,637, tested 2025) |
Each year was tested in a different calendar year; the verdict compares each against all class 4 vehicles the same age tested in its own year.
What fails on a Daihatsu Sirion at 18 years
All Daihatsu Sirion MOTs at 18 years, cars first used 2004–2007 (2,889 MOT tests; DVSA item counts are not split by first-use year). The most common fail items: suspension ball joint worn (9.2 per 100 MOT tests), wipers not clearing screen (5.2 per 100 MOT tests, a wear item) and brake light not working (3.6 per 100 MOT tests, a wear item).
No item fails at a clearly different rate from all class 4 vehicles the same age across 3 or more ages.
Road tax for a 2007 Daihatsu Sirion
The Vehicle Certification Agency lists 7 petrol versions of the Daihatsu Sirion in its data from May 2006 to May 2008, from 118 to 157 g/km CO2 [3]. A car first registered from 1 March 2001 to 31 March 2017 is taxed by CO2 band, so that is 4 bands from C to G: from £35 to £275 a year at the 2026/27 rates [2].
| Band | 12 months | CO2 g/km | Versions listed |
|---|---|---|---|
| C | £35 | 118 | 1 |
| E | £200 | 137 | 2 |
| F | £225 | 145 | 1 |
| G | £275 | 151–157 | 3 |
Versions listed, not cars sold: this does not say how common each band is. The CO2 figure on the car's V5C log book decides its band. Car tax calculator for a 2007 petrol car
Car tax and ULEZ for a 2007 car
A car first registered in the UK in 2007 was issued a 56 (January–February), 07 (March–August) or 57 (September–December) plate, unless it was registered in Northern Ireland (no age identifier) or has since moved to a private plate. An imported one is plated when first registered here, so its plate can be newer than its first-use year. 07 plates
A 2007 car is taxed by its CO2 emissions band (A to M), shown on the V5C logbook. [2]
For the London ULEZ, a 2007 petrol usually meets Euro 4. The Euro standard of the car decides, not the year alone. [4] ULEZ checker
Buying a Daihatsu Sirion? Check that exact car before the viewing.
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- Model risks for this year and fuel
- What similar cars did at their next MOT
- Repairs ahead
- Viewing checklist
Questions people ask
What is the MOT fail rate of a 2007 Daihatsu Sirion?
37.8% at 18 years (tested 2025), from 1,206 MOT tests, against 42.2% for all class 4 vehicles tested at 18 years in 2025.
Does the 2007 Daihatsu Sirion fail more MOTs than the 2008?
0.2 percentage points apart at the same ages (15–17), each against all class 4 vehicles the same age and test year, from 4,530 MOT tests (95% range −3.1 to +3.4), so about the same.
At what ages were 2007 Daihatsu Sirion cars MOT tested in the data?
4 ages with at least 1,000 MOT tests: 15–18 years, tested 2022–2025, 5,736 MOT tests in all.
What fails most on a Daihatsu Sirion at 18 years?
9.2 in 100 MOT tests failed on suspension ball joint worn, the most common fail item. From 2,889 MOT tests of Daihatsu Sirion cars first used 2004–2007, not only 2007.
Sources
- Driver and Vehicle Standards Agency, Anonymised MOT tests and results, 2022 to 2025. DVSA MOT data, Open Government Licence v3.0, 5,736 MOT tests. Accessed 7 Oct 2026.
- GOV.UK, Vehicle tax rates. Rules, not drawn from the MOT data.
- Vehicle Certification Agency, Car fuel and emissions data. VCA data, Open Government Licence v3.0.
- Transport for London, Ultra Low Emission Zone. Rules, not drawn from the MOT data.
Cars tested at 18 years are compared with every class 4 vehicle tested at 18 years in the same test year. These rates are not adjusted for mileage. Breakdowns and non-MOT faults are not in this data. How we compare