Lexus
Ls400
2,773 MOT tests analysed. lands in the middle of the pack — here's where Ls400s pass, fail, and end up on the retest sheet.
That's 0.9 points above the UK fleet average across our 1,984 tracked models — a confident result.
Pass
78.4%
Pass-after-fix
4.0%
Fail
16.0%
Avg miles
146,453
Pass + Pass-after-fix + Fail = 100%
This model's production run straddles the January 2006 Euro 4 cutoff. Individual cars vary — check your registration plate on the government's ULEZ checker. Daily charges if driven in the zone: London £12.50 · Birmingham £8.00 .
The picture
Ls400: middle-of-the-pack on first-time pass
Across 1,188 MOT tests, the Ls400 returns 75.5% first-time pass — roughly in line with the UK fleet average. The single most-logged Major fail is a number-plate lamp out. Windscreen damage and worn suspension bushes round out the top three. Average tested mileage sits at 144,052, which is the lens to read those failure rankings through. If you own one and the next test is close, the ranked list below is a sensible pre-test checklist.
ABI Insurance Group
Group 20–44
Above average — worth comparing quotes before buying. Lower groups cost less to insure; UK fleet average is around Group 22.
Source: ABI Group Rating Panel · administered by Thatcham Research · groups cover standard variants; performance trims may sit higher. Browse all insurance groups →
20–44
out of 50
Top ten reasons for rejection.
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- 01
The strength or continuity of the load bearing structure within 30cm of any sub-frame, spring or suspension component mounting (a 'prescribed area') is significantly reduced or inadequately repaired
100 occurrences · 3.6% of tests
- 02
Windscreen or window damaged or seriously discoloured but not adversely affecting driver's view
92 occurrences · 3.3% of tests
- 03
Lambda coefficient outside the default limits or the range specified by the manufacturer
79 occurrences · 2.8% of tests
- 04
A rear registration plate lamp or light source missing or inoperative in the case of multiple lamps or light sources
78 occurrences · 2.8% of tests
- 05
A suspension pin, bush or joint excessively worn
64 occurrences · 2.3% of tests
- 06
A suspension pin, bush or joint excessively worn
58 occurrences · 2.1% of tests
- 07
A suspension joint dust cover severely deteriorated
54 occurrences · 1.9% of tests
- 08
A lamp missing, inoperative or in the case of a multiple light source more than 1/2 not functioning
53 occurrences · 1.9% of tests
- 09
A spring or spring component fractured or seriously weakened
50 occurrences · 1.8% of tests
- 10
Steering rack gaiter or ball joint dust cover damaged or deteriorated
46 occurrences · 1.7% of tests
Counts cover Major and Dangerous defects logged at test. Advisory items excluded so this shows why a car was rejected, not just what the tester flagged in passing.
Worst-case fix budget · top 2 failures
£88–£275
If every one of this Ls400's most-logged Major fails hit at the same MOT, that's the real-world UK garage range. Reality is usually one or two items, not all of them. Open the estimator →
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Picked against this car's top failure patterns. Affiliate links to Amazon UK — we earn a small cut at no cost to you. Disclosed up-front, doesn't shape the data.
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Parts & supplies for this fix
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Buying or keeping a Ls400?
Use the failure ranking as a pre-test checklist or a haggling lever. Treat the headline pass rate as a fleet-wide trend, not a guarantee on any individual car.
If you own a Ls400 and your last MOT looked nothing like the ranked failures above, that's normal — individual cars vary widely. The ranking shows the patterns testers flag most often across the country.