Lexus LS400

Reliability, estimated running costs, and MOT data across 10 model years from 2,740 MOT tests in 2024.

Avg Pass Rate

83%

Total Tests

2,740

Highest Pass Rate

1995 (85%)

Years Covered

About the Lexus LS400

The Lexus LS400 was MOT tested 2,740 times in 2024 (DVSA data, retests included) across 10 model years (1991 to 2000), with an average pass rate of 83%. That's slightly above the average of 82% across all models in our data. Our records list petrol versions.

Best and Worst Years

Of the years with at least 100 tests, the 1995 model has the highest pass rate at 85% from 344 tests. The 2000 model has the lowest at 79%. The 6 point gap means pass rates vary somewhat between years, but no year is dramatically different. Newer cars usually pass more often simply because they are younger.

Reliability Trend

Older Lexus LS400s tend to have better MOT pass rates than newer ones, with an average decline of 3 percentage points across model years.

Mileage Across Years

The oldest model in our data (1991) averages 145,765 miles, while the newest (2000) averages 152,939 miles. Older models have covered serious mileage, so suspension and drivetrain wear are worth checking.

Compared to the Lexus brand average of 87%, the LS400 is 4 points lower, placing it among the less reliable Lexus models.

Estimated Running Costs

Fuel (Petrol, 3969cc)

£1,958

Road Tax

£375

MOT Test

£55

Predicted Repairs

£500

Total per year£2,888

Per month£241/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 2000 details

How reliable is the Lexus LS400?

vs average of all models+1% (82% avg)

vs Lexus brand average-4% (87% avg)

Best to worst year spread6 percentage points

Reliability trendDeclining over years

Lexus LS400 by Year

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

Year	Pass Rate	Tests	Avg Mileage
2000	79%	190	152,939 mi
1999	79%	322	153,860 mi
1998	83%	812	153,118 mi
1997	81%	510	142,115 mi
1996	85%	291	146,108 mi
1995	85%	344	141,009 mi
1994	86%	74	127,428 mi
1993	79%	86	106,151 mi
1992	82%	56	140,993 mi
1991	91%	55	145,765 mi

Questions about the Lexus LS400

Is the Lexus LS400 reliable?

Across its 10 model years in our data (1991 to 2000), the Lexus LS400 averages an 83% MOT pass rate, from 2,740 tests (DVSA MOT data for tests in 2024, retests included). That's 1 point above the average of 82% across all models in the same data. The 1995 model has the highest pass rate of the years with at least 100 tests, at 85%.

Which year Lexus LS400 has the best MOT pass rate?

Of the years with at least 100 tests, the 1995 Lexus LS400 has the highest MOT pass rate at 85%, while the 2000 model has the lowest at 79%, a 6 point gap. Newer cars usually pass more often simply because they are younger, so compare years of a similar age.