Daihatsu Sirion
Reliability, running costs, and MOT data across 13 years from 10,921 real MOT tests.
Avg Pass Rate
70%
Total Tests
10,921
Best Year
2010 (81%)
Years Covered
13
How reliable is the Daihatsu Sirion?
Daihatsu Sirion by Year
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About the Daihatsu Sirion
The Daihatsu Sirion has been tested 10,921 times in 2024 MOT data across 13 model years (1998 to 2010), with an average pass rate of 70%. That's 12 points below the national average of 82%, so check the year-by-year data carefully before buying. Available as petrol.
Best and Worst Years
The 2010 model is the most reliable with a 81% pass rate from 175 tests. The 1999 model has the lowest at 60%. With a 21 point spread, choosing the right year makes a big difference to reliability.
Reliability Trend
Newer DAIHATSU SIRIONs show better MOT pass rates than older ones, with an average improvement of 8 percentage points.
Mileage Across Years
The oldest model in our data (1998) averages 61,601 miles, while the newest (2010) averages 70,810 miles.
Click any year in the table above to see detailed running costs, individual reliability data, and comparisons with similar cars.