Hyundai Sonata
Reliability, running costs, and MOT data across 8 years from 896 real MOT tests.
Avg Pass Rate
76%
Total Tests
896
Best Year
2010 (89%)
Years Covered
8
How reliable is the Hyundai Sonata?
Hyundai Sonata by Year
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About the Hyundai Sonata
The Hyundai Sonata has been tested 896 times in 2024 MOT data across 8 model years (2003 to 2010), with an average pass rate of 76%. That's 6 points below the national average of 82%, so check the year-by-year data carefully before buying. Available as diesel and petrol.
Best and Worst Years
The 2010 model is the most reliable with a 89% pass rate from 44 tests. The 2008 model has the lowest at 67%. With a 22 point spread, choosing the right year makes a big difference to reliability.
Reliability Trend
Older HYUNDAI SONATAs tend to have better MOT pass rates than newer ones, with an average decline of 5 percentage points across model years.
Mileage Across Years
The oldest model in our data (2003) averages 75,884 miles, while the newest (2010) averages 105,703 miles.
Compared to the Hyundai brand average of 83%, the Sonata is 7 points lower, placing it among the less reliable Hyundai models.
Click any year in the table above to see detailed running costs, individual reliability data, and comparisons with similar cars.