Lexus
Gs450h
2,487 MOT tests analysed. lands in the middle of the pack — here's where Gs450hs pass, fail, and end up on the retest sheet.
That's 1.7 points above the UK fleet average across our 1,984 tracked models — a confident result.
Pass
79.2%
Pass-after-fix
3.9%
Fail
15.7%
Avg miles
113,473
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
Gs450h: middle-of-the-pack on first-time pass
Across 1,558 MOT tests, the Gs450h returns 79.0% first-time pass — roughly in line with the UK fleet average. The single most-logged Major fail is shock absorber damaged to the extent. Windscreen damage and a defective headlamp lens round out the top three. Average tested mileage sits at 111,486, 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
Windscreen or window damaged or seriously discoloured but not adversely affecting driver's view
74 occurrences · 3.0% of tests
- 02
Headlamp reflector or lens slightly defective
67 occurrences · 2.7% of tests
- 03
Tyre tread depth not in accordance with the requirements
53 occurrences · 2.1% of tests
- 04
A shock absorber damaged to the extent that it does not function or showing signs of severe leakage
52 occurrences · 2.1% of tests
- 05
A lamp missing, inoperative or in the case of a multiple light source more than 1/2 not functioning
45 occurrences · 1.8% of tests
- 06
The aim of a headlamp is not within limits laid down in the requirements
37 occurrences · 1.5% of tests
- 07
A headlamp or light source missing, inoperative or more than ½ not functioning in the case of LED
32 occurrences · 1.3% of tests
- 08
Parking brake efficiency below minimum requirement
31 occurrences · 1.2% of tests
- 09
Engine MIL illuminated indicating a malfunction
31 occurrences · 1.2% of tests
- 10
A tyre seriously damaged
29 occurrences · 1.2% 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
£70–£175
If every one of this Gs450h'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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Build your own retest budget.
Tools that pre-empt a retest.
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.
Item 01 · Amazon UK
Headlight restoration kit
Yellowed lenses fail the light-output test. A restoration kit lifts the haze in an afternoon for £20.
Search Amazon UK
Item 02 · Amazon UK
Digital tyre-tread depth gauge
Five quid for a gauge beats £150 for a retest. UK MOT minimum is 1.6mm — most testers fail anything below 2mm to be safe.
Search Amazon UK
My Motor World · affiliate
Parts & supplies for this fix
Affiliate links — small commission, no extra cost to you.
Motor World
Motor World Lexus IS200 Car Floor Mat Set
£32.99
View at My Motor World →
Motor World
Motor World Lexus IS300 2005- Car Floor Mat Set
£32.99
View at My Motor World →
Motor World
Motor World Lexus IS250/220 Man/Auto 2006- Car Floor Mat Set
£32.99
View at My Motor World →
Motor World
Motor World Lexus GS450H Saloon 2005- Car Floor Mat Set
£32.99
View at My Motor World →
Click Mechanic · affiliate
Book a mobile mechanic
Affiliate links — small commission, no extra cost to you.
Mobile mechanic · UK-wide
Book a mechanic at your door.
Fixed-price quotes upfront. No garage needed. Click Mechanic sends a vetted local mechanic to you — home, work, or roadside.
Buying or keeping a Gs450h?
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 Gs450h 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.