Daihatsu Sirion reliability, MPG and running costs
Figures updated
The Daihatsu Sirion is a car. In 2024 MOT tests it scored 98 for reliability (100 is average), ranking 269 of 442, and 39.2% failed first time against a UK average of 28.5%. Its most common MOT failure is ball joint (10.0% of tests).
Ranked 269 of 442 cars in the 2024 MOT Reliability League
In 2024, 5,768 Daihatsu Sirions aged 3 to 20 had an MOT and 39.2% failed first time (UK average 28.5%). Taking age and mileage into account, the Daihatsu Sirion is about as likely to fail as the average car of the same age and mileage.
First-time fail rate
39.2%
UK 28.5%
Fail rate at 3 years
–
UK 12.7%
Average miles a year
4,400
Typical age at test: 16 years
Daihatsu Sirion MOT failure rate by age
Most common Daihatsu Sirion MOT faults
- Ball joint: ball joint excessively worn10.0% of tests
- Wipers: does not clear the windscreen effectively4.2% of tests
- Stop lamp: not working3.5% of tests
- Position lamp: not working3.4% of tests
- Linkage ball joints: ball joint excessively worn3.1% of tests
- Rigid brake pipes: excessively corroded2.9% of tests
What the Daihatsu Sirion fails on
| Area | Tests failing | vs similar cars |
|---|---|---|
| Suspension | 18.4% | ▲ 1.3× as often |
| Lights and electrics | 15.1% | ▼ 13% less often |
| Brakes | 9.7% | About average |
| Visibility | 6.5% | About average |
| Body and structure | 6.2% | About average |
| Tyres | 5.3% | ▼ 14% less often |
| Exhaust and emissions | 4.7% | About average |
| Steering | 4.1% | ▲ 1.6× as often |
| Seat belts and airbags | 1.3% | ▼ 17% less often |
| Wheels | 0.1% | ▼ 73% less often |
What MPG does the Daihatsu Sirion do?
Official economy for the Daihatsu Sirion ranges from 42.2 to 56.5mpg across the 14 versions listed by the Vehicle Certification Agency (2004–2010). A typical petrol version manages 45.6mpg. Expect 10–15% less in real-world driving.
Work out a journey's fuel costHow much is road tax on a Daihatsu Sirion?
Any Daihatsu Sirion first registered from April 2017 pays the standard rate of £200 a year after its first year (2026/27 rates). A Daihatsu Sirion registered between March 2001 and March 2017 is taxed on its CO2: £35 to £275 a year.
Work out tax for a specific carDaihatsu Sirion specs and running costs
Official figures for 14 versions sold in the UK between 2004 and 2010.
Fuel types
Petrol
Official economy
42.2–56.5 mpg
CO2
118–157 g/km
| Version | Fuel | Economy | CO2 | Car tax |
|---|---|---|---|---|
| Sirion M300 1.0L EFiM5 · listed 2010 | Petrol | 56.5 mpg | 118g | £35 |
| Sirion M301 1.3L EFiM5 · listed 2010 | Petrol | 48.7 mpg | 137g | £200 |
| Sirion M301 1.3L EFiA4 · listed 2010 | Petrol | 44.1 mpg | 151g | £275 |
| Sirion M303 1.5L EFiM5 · listed 2010 | Petrol | 45.6 mpg | 145g | £225 |
| Sirion M303 1.5L EFiA4 · listed 2010 | Petrol | 42.2 mpg | 157g | £275 |
| Sirion M301 1.3L EFi (from VIN 1068726)M5 · listed 2008 | Petrol | 48.7 mpg | 137g | £200 |
| Sirion M301 1.3L EFi (from VIN 1068726)A4 · listed 2008 | Petrol | 44.1 mpg | 151g | £275 |
| Sirion M100 1.0L EFi (From VIN 538946)M5 · listed 2004 | Petrol | 51.4 mpg | 129g | £170 |
| Sirion M100 1.0L EFi (From VIN 538946)A4 · listed 2004 | Petrol | 45.6 mpg | 145g | £225 |
| Sirion M101 1.3L EFiM5 · listed 2004 | Petrol | 49.6 mpg | 135g | £200 |
| Sirion M101 1.3L EFiA4 · listed 2004 | Petrol | 44.8 mpg | 149g | £225 |
| Sirion M111 1.3L EFi 4WDM5 · listed 2004 | Petrol | 44.8 mpg | 149g | £225 |
| Sirion M101 1.3L EFi Rally IIM5 · listed 2004 | Petrol | 46.5 mpg | 144g | £225 |
| Sirion M111 1.3L EFi Rally IVM5 · listed 2004 | Petrol | 44.8 mpg | 150g | £225 |
Economy and CO2 are official NEDC (before 2018) or WLTP figures. Car tax is the yearly rate at current rates for a car first registered in the year listed, before any expensive car supplement.
What a Daihatsu Sirion costs to fuel
- petrol, typical official 45.6mpg…
Official figures are usually 10–15% better than real-world driving.
Work out a journey in a Daihatsu SirionBuying a used Daihatsu Sirion?
Check the MOT history of the exact car: every result, advisory and mileage reading, free.
Other Daihatsu models
Frequently asked questions
›Is the Daihatsu Sirion reliable?
Its MOT record is about average: the Daihatsu Sirion is about as likely to fail as the average car of the same age and mileage, with a reliability score of 98 in our 2024 league (100 is average).
›What are common problems with the Daihatsu Sirion?
The most common MOT fault is “Ball joint: ball joint excessively worn”, found in 10.0% of tests. It fails on steering and suspension more often than similar cars.
›What MPG does the Daihatsu Sirion do?
Official economy for the Daihatsu Sirion ranges from 42.2 to 56.5mpg across the 14 versions listed by the Vehicle Certification Agency (2004–2010). A typical petrol version manages 45.6mpg. Expect 10–15% less in real-world driving.
›How much is road tax on a Daihatsu Sirion?
Any Daihatsu Sirion first registered from April 2017 pays the standard rate of £200 a year after its first year (2026/27 rates). A Daihatsu Sirion registered between March 2001 and March 2017 is taxed on its CO2: £35 to £275 a year.
›How many Daihatsu Sirions fail their MOT?
39.2% of Daihatsu Sirions aged 3 to 20 failed their MOT first time in 2024.
Sources: DVSA anonymised MOT tests 2024, all versions of the Daihatsu Sirion combined (Open Government Licence v3.0); official economy and CO2 from Vehicle Certification Agency data, © Crown copyright. VCA cannot accept liability for its accuracy. How we calculate the league.