Lexus Ls400 (1999)
1999 Lexus Ls400
CarHunch analysed 374 real MOT records for the 1999 Lexus Ls400.
Real test outcomes — pass rates, defect profiles, mileage data — from verified DVLA records. Updated as new MOTs are recorded.
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Moderate sample. 374 vehicles on record. Figures are indicative — the specific vehicle's history matters more than these averages.
The 1999 LS400's 78.9% first-time pass rate sits just slightly below the UK average of 80%, suggesting broadly typical reliability for a car of its age—but the concerning element is that nearly a third of these vehicles (31.8%) have recorded dangerous defects at some point, which is a red flag for potential structural or safety issues. This luxury saloon is clearly being driven hard, with a median mileage of 121,323 miles at 25 years old, well above the average for the cohort's age.
With an average of 3.6 failures and 20 advisories per MOT test, these cars need close attention to maintenance; the high advisory count suggests worn components and systems that aren't yet critical but are deteriorating steadily. Before buying, insist on a full service history and independent inspection focusing on suspension, brakes, and electrics—the advisory pattern indicates these are where age-related wear accumulates fastest on this model.
The 1999 Lexus Ls400 has a decent first-time pass rate (79.2%), but a higher-than-average share of vehicles have had serious defects recorded — the individual vehicle's history matters a lot here.
These stats describe 374 vehicles as a group. The specific vehicle you're looking at could be the one good example or the one outlier. Run its registration to find out.
What tends to go wrong
Across 374 vehicles — figures show how many had each issue flagged at least once in their MOT history.
Data covers a 3-year window centred on 1999.
See this vehicle's full MOT history & AI hunches
Spot recurring advisories, hidden issues, and how it compares to 374 Lexus Ls400 cars.
Before you buy a 1999 Lexus Ls400
Based on MOT data from 374 vehicles — here's what to check.
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Check the full MOT history.
31.8% of these vehicles have had a dangerous defect recorded -
recurring advisories often signal problems years before they become failures.
Search the reg on CarHunch for the full MOT history, reliability stats and a free AI-powered analysis of that exact vehicle. -
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Brake pipes, sills and subframes are the key areas on a vehicle this age — structural rust is hard to spot without getting underneath. A mechanic will check all of this before you commit, and give you a concrete basis to negotiate on price.
Inspection
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Outstanding finance, insurance write-offs and clocking won't appear in the MOT records — a dedicated history check covers all of this. Our link gets you 20% off automatically.
History
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Pass Rate by Fuel Type
| Fuel type | Vehicles | Pass rate | Avg failures |
|---|---|---|---|
| Petrol (96%) | 358 | 79.3% | 3.59 |
Colour Breakdown
Based on 8,327 Lexus Ls400 vehicles registered in the UK — across all years. From DVLA registration records.
Mileage Distribution
Most 1999 Lexus Ls400 vehicles sit in the blue band. If the vehicle you're looking at is outside it, it's either unusually low or high mileage for its age.
Half of all 1999 Lexus Ls400 vehicles fall between 94,051 and 144,977 miles.
1999 Lexus Ls400 — Still on the Road
Numbers are thinning — 34% of 1999 Lexus Ls400s are still active.
Numbers are declining — 93 vehicles still getting MOTs in 2025 (34% of peak).
Based on vehicles from this manufacture year that had at least one MOT test in each calendar year. Data from 2014–2025.
* The 2020 dip reflects the government's COVID-19 MOT exemption, which allowed certificates to be extended by six months — fewer tests were conducted that year.
MOT History Averages
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Compare with another model
See how the 1999 Lexus Ls400 stacks up against a rival.