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Lexus
Rx350
1,589 MOT tests analysed. lands in the middle of the pack — here's where Rx350s pass, fail, and end up on the retest sheet.
That's 1.2 points below the UK fleet average across our 1,984 tracked models — buyers should expect more first-time fails than the typical UK car.
Pass
76.3%
Pass-after-fix
4.0%
Fail
18.5%
Avg miles
106,517
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
Rx350: middle-of-the-pack on first-time pass
Across 1,034 MOT tests, the Rx350 returns 75.3% first-time pass — roughly in line with the UK fleet average. The single most-logged Major fail is a torn suspension dust cover. Brake pads worn below 1.5 mm and a defective headlamp lens round out the top three. Average tested mileage sits at 109,023, 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
a brake lining or pad worn below 1.5mm
49 occurrences · 3.1% of tests
- 02
A suspension joint dust cover severely deteriorated
48 occurrences · 3.0% of tests
- 03
Headlamp reflector or lens slightly defective
34 occurrences · 2.1% of tests
- 04
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
28 occurrences · 1.8% of tests
- 05
Engine MIL illuminated indicating a malfunction
25 occurrences · 1.6% of tests
- 06
Windscreen or window damaged or seriously discoloured but not adversely affecting driver's view
24 occurrences · 1.5% of tests
- 07
A battery insecure but not likely to fall from carrier
19 occurrences · 1.2% of tests
- 08
Wiper blade defective
19 occurrences · 1.2% of tests
- 09
Parking brake efficiency below minimum requirement
18 occurrences · 1.1% of tests
- 10
A tyre cords visible or damaged
16 occurrences · 1.0% 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 3 failures
£170–£480
If every one of this Rx350'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 →
Try the calculator
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
Brake pad measurement gauge
Testers fail pads under 1.5mm. A wear gauge tells you if you've got two months left or two weeks.
Search Amazon UK
Item 02 · 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
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 Rx350?
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 Rx350 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.