Lexus RX400H
Reliability, estimated running costs, and MOT data across 5 model years from 13,578 MOT tests in 2024.
Avg Pass Rate
80%
Total Tests
13,578
Highest Pass Rate
2008 (82%)
Years Covered
5
About the Lexus RX400H
The Lexus RX400H was MOT tested 13,578 times in 2024 (DVSA data, retests included) across 5 model years (2005 to 2009), with an average pass rate of 80%. That's close to the average of 82% across all models in our data. Our records list hybrid versions.
Best and Worst Years
Of the years with at least 100 tests, the 2008 model has the highest pass rate at 82% from 3,521 tests. The 2005 model has the lowest at 79%. With just a 3 point gap, pass rates are similar across these years. Newer cars usually pass more often simply because they are younger.
Reliability Trend
The Lexus RX400H has maintained consistent MOT pass rates across model years, varying by only 2 percentage points.
Mileage Across Years
The oldest model in our data (2005) averages 148,000 miles, while the newest (2009) averages 121,674 miles. Older models have covered serious mileage, so suspension and drivetrain wear are worth checking.
Compared to the Lexus brand average of 87%, the RX400H is 7 points lower, placing it among the less reliable Lexus models.
Estimated Running Costs
Based on 7,400 miles/year, average pump prices of 174.57p petrol and 199.33p diesel (GOV.UK weekly road fuel prices, week of 19 October 2026), and MOT pass rate data. Insurance not included.
Full 2009 detailsHow reliable is the Lexus RX400H?
Lexus RX400H by Year
Click any year to see detailed running costs, reliability data, and comparisons with similar cars.
Questions about the Lexus RX400H
Is the Lexus RX400H reliable?
Across its 5 model years in our data (2005 to 2009), the Lexus RX400H averages an 80% MOT pass rate, from 13,578 tests (DVSA MOT data for tests in 2024, retests included). That's 2 points below the average of 82% across all models in the same data. The 2008 model has the highest pass rate of the years with at least 100 tests, at 82%.
Which year Lexus RX400H has the best MOT pass rate?
Of the years with at least 100 tests, the 2008 Lexus RX400H has the highest MOT pass rate at 82%, while the 2005 model has the lowest at 79%, a 3 point gap. Newer cars usually pass more often simply because they are younger, so compare years of a similar age.
Are newer Lexus RX400Hs more reliable?
The Lexus RX400H has maintained consistent MOT pass rates across model years, varying by only 2 percentage points.
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