Lexus RX400

Reliability, estimated running costs, and MOT data across 3 model years from 113 MOT tests in 2024.

Avg Pass Rate

78%

Total Tests

113

Model Years

2006 to 2008

Years Covered

About the Lexus RX400

The Lexus RX400 was MOT tested 113 times in 2024 (DVSA data, retests included) across 3 model years (2006 to 2008), with an average pass rate of 78%. That's close to the average of 82% across all models in our data. Our records list electric and hybrid versions.

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.

Estimated Running Costs

Fuel (Electric, 3311cc)

£555

Road Tax

£20

MOT Test

£55

Predicted Repairs

Higher due to low pass rate

£700

Total per year£1,330

Per month£111/mo

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 2008 details

How reliable is the Lexus RX400?

vs average of all models-4% (82% avg)

vs Lexus brand average-9% (87% avg)

Lexus RX400 by Year

Click any year to see detailed running costs, reliability data, and comparisons with similar cars.

Year	Pass Rate	Tests	Avg Mileage
2008	68%	40	139,886 mi
2007	89%	36	157,670 mi
2006	78%	37	137,304 mi

Questions about the Lexus RX400

Is the Lexus RX400 reliable?

Across its 3 model years in our data (2006 to 2008), the Lexus RX400 averages a 78% MOT pass rate, from 113 tests (DVSA MOT data for tests in 2024, retests included). That's 4 points below the average of 82% across all models in the same data.