DAIHATSU SIRION (2003)
Running costs, common problems, and reliability data based on 199 real MOT tests in 2024.
MOT Pass Rate
67%
Total Tests (2024)
199
Avg Mileage
74,428 mi
Est. Annual Cost
£1,740
Is the 2003 DAIHATSU SIRION reliable?
Below average reliability. Budget extra for maintenance and repairs. That's 15 points below the national average of 82%. It falls below the DAIHATSU brand average of 71%.
At 21 years old, 67% of DAIHATSU SIRIONs from 2003 passed their MOT first time in 2024. That's based on 199 tests across the UK. The average mileage at this age is 74,428 miles.
How does the 2003 DAIHATSU SIRION compare?
Mileage Analysis
The average 2003 DAIHATSU SIRION has 74,428 miles on the clock, which is significantly below the expected 155,400 miles for a 21-year-old car. Low-mileage examples may have spent time sitting unused, so check for issues like corroded brakes or perished rubber seals.
Best year to buy a DAIHATSU SIRION?
The most reliable year is the 2010 model with a 81% MOT pass rate, while the 1999 model has the lowest at 60%. The 2003 sits between the two at 67%.
How much does a 2003 DAIHATSU SIRION cost to run?
Higher than average due to low pass rate
Based on 7,400 miles/year (UK average), current fuel prices, and repair likelihood from MOT pass rate data. Insurance not included.
DAIHATSU SIRION by Year
Checking a specific DAIHATSU SIRION?
Enter the reg plate to see its individual MOT history, mileage verification, and predicted costs.
About the 2003 DAIHATSU SIRION
The 2003 DAIHATSU SIRION is a city car with a 989cc petrol engine. 199 of these vehicles were MOT tested in 2024, making it a rare model on UK roads. It sits in the bottom 83% of 2003 cars for MOT pass rates.
With an average of 74,428 miles at 21 years old, DAIHATSU SIRION owners tend to use this car less than the typical driver. Very low mileage could mean the car has been garaged or used only for short trips, which can cause its own issues like battery drain and moisture buildup.
2003 DAIHATSU SIRION Fuel Costs
The modest 989cc petrol engine keeps fuel costs low, which is a real advantage for a city car. Expect around 50 mpg in mixed driving, which works out to roughly £955 per year at current petrol prices of 142p per litre (based on 7,400 miles per year).
What does it cost to own a 2003 DAIHATSU SIRION?
Total estimated annual running cost is £1,740 (£145/month), broken down as £955 fuel, £30 road tax, £55 MOT, and £700 predicted repairs. The higher repair estimate reflects the 67% MOT pass rate. Cars in this bracket tend to need work on suspension, brakes, and emissions components.
DAIHATSU SIRION Reliability Trend
Newer DAIHATSU SIRIONs show better MOT pass rates than older ones, with an average improvement of 8 percentage points.
Buying a Used 2003 DAIHATSU SIRION
At 21 years old, the DAIHATSU SIRION is firmly in budget territory. Purchase prices are low, but check for rust, worn suspension bushes, and electrical gremlins. A full service history is especially valuable at this age. If you're flexible on year, the 2010 model has the highest pass rate at 81%.
Alternatives to the 2003 DAIHATSU SIRION
If reliability is your priority, there are 4 similar cars with a higher MOT pass rate. Here are comparable petrol cars with similar engines:
- FORD FIESTA (2003) 71% pass rate (+4%) from 29,898 tests
- TOYOTA YARIS (2005) 73% pass rate (+6%) from 29,754 tests
- HONDA JAZZ (2005) 70% pass rate (+3%) from 28,650 tests
- NISSAN MICRA (2005) 72% pass rate (+5%) from 27,370 tests