Lexus Rx400
Reliability, running costs, and MOT data across 3 years from 113 real MOT tests.
Avg Pass Rate
78%
Total Tests
113
Best Year
2007 (89%)
Years Covered
3
How reliable is the Lexus Rx400?
Lexus Rx400 by Year
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About the Lexus Rx400
The Lexus Rx400 has been tested 113 times in 2024 MOT data across 3 model years (2006 to 2008), with an average pass rate of 78%. That's close to the national average of 82%. Available as electric and hybrid.
Best and Worst Years
The 2007 model is the most reliable with a 89% pass rate from 36 tests. The 2008 model has the lowest at 68%. With a 21 point spread, choosing the right year makes a big difference to reliability.
Mileage Across Years
The oldest model in our data (2006) averages 137,304 miles, while the newest (2008) averages 139,886 miles. Older models have covered serious mileage, so suspension and drivetrain wear are worth checking.
Compared to the Lexus brand average of 87%, the Rx400 is 9 points lower, placing it among the less reliable Lexus models.
Click any year in the table above to see detailed running costs, individual reliability data, and comparisons with similar cars.