Lexus
Sc430
3,503 MOT tests analysed. sits above the UK fleet average — here's where Sc430s pass, fail, and end up on the retest sheet.
That's 5.3 points above the UK fleet average across our 1,984 tracked models — a confident result.
Pass
82.8%
Pass-after-fix
3.5%
Fail
13.3%
Avg miles
91,565
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
Sc430: middle-of-the-pack on first-time pass
Across 2,130 MOT tests, the Sc430 returns 78.7% first-time pass — roughly in line with the UK fleet average. The single most-logged Major fail is a torn suspension dust cover. Shock absorber damaged to the extent and the engine warning light staying lit round out the top three. Average tested mileage sits at 89,259, 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
Headlamp reflector or lens slightly defective
70 occurrences · 2.0% of tests
- 02
A suspension joint dust cover severely deteriorated
67 occurrences · 1.9% of tests
- 03
Engine MIL illuminated indicating a malfunction
56 occurrences · 1.6% of tests
- 04
A lamp missing, inoperative or in the case of a multiple light source more than 1/2 not functioning
54 occurrences · 1.5% of tests
- 05
Lambda coefficient outside the default limits or the range specified by the manufacturer
46 occurrences · 1.3% of tests
- 06
A suspension pin, bush or joint excessively worn
40 occurrences · 1.1% of tests
- 07
A rear registration plate lamp or light source missing or inoperative in the case of multiple lamps or light sources
35 occurrences · 1.0% of tests
- 08
A tyre seriously damaged
34 occurrences · 1.0% of tests
- 09
ESC MIL indicates a system malfunction
33 occurrences · 0.9% of tests
- 10
Windscreen or window damaged or seriously discoloured but not adversely affecting driver's view
30 occurrences · 0.9% 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
£90–£320
If every one of this Sc430'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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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.
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Parts & supplies for this fix
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Buying or keeping a Sc430?
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 Sc430 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.