MOT cost .

Lexus

Rx350

1,034 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 in line with the UK fleet average across our 1,988 tracked models.

Pass

75.3%

Pass-after-fix

4.0%

Fail

19.8%

Avg miles

109,023

Pass + Pass-after-fix + Fail = 100%

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.

Top ten reasons for rejection.

  1. 01

    A suspension joint dust cover severely deteriorated

    44 occurrences · 4.3% of tests

  2. 02

    a brake lining or pad worn below 1.5mm

    41 occurrences · 4.0% of tests

  3. 03

    Headlamp reflector or lens slightly defective

    35 occurrences · 3.4% of tests

  4. 04

    Engine MIL illuminated indicating a malfunction

    32 occurrences · 3.1% of tests

  5. 05

    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

    30 occurrences · 2.9% of tests

  6. 06

    A lamp missing, inoperative or in the case of a multiple light source more than 1/2 not functioning

    30 occurrences · 2.9% of tests

  7. 07

    A suspension joint dust cover severely deteriorated

    27 occurrences · 2.6% of tests

  8. 08

    Parking brake efficiency below minimum requirement

    22 occurrences · 2.1% of tests

  9. 09

    A rear registration plate lamp or light source missing or inoperative in the case of multiple lamps or light sources

    21 occurrences · 2.0% of tests

  10. 10

    Lambda coefficient outside the default limits or the range specified by the manufacturer

    21 occurrences · 2.0% 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

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.