Is the Lexus Rx400 reliable?

The Lexus Rx400 has an average MOT pass rate of 78% across 3 years, based on 113 tests in 2026. That's 4 points below the national average of 82%. The most reliable year is 2007 with a 89% pass rate.

Which year Lexus Rx400 is best?

The 2007 Lexus Rx400 has the highest MOT pass rate at 89%, while the 2008 model has the lowest at 68%. There's a 21 percentage point spread between the best and worst years.

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

About the Lexus Rx400

The Lexus Rx400 has been tested 113 times in 2026 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.