How reliable is the Lexus RX350 compared with other cars?

We do not publish a comparison for the Lexus RX350, because the cars of this model that have been tested do not cover a wide enough range of ages and mileages. Its raw pass rate is 64.3% across 659 tests, but comparing a raw rate between models mostly ranks them by how new they are rather than how good they are. The failure and advisory patterns further down the page are still drawn from real tests and are worth reading.

What do testers most often warn about on a Lexus RX350?

The most common advisory is "A suspension pin, bush or joint excessively worn", noted on 38.7% of all Lexus RX350 tests. An advisory is not a failure: it flags something that will likely need attention before the next test.

What mileage does a Lexus RX350 usually have at its MOT?

The average odometer reading recorded at test is 112,966 miles. This is the mileage across all tested examples of every age, not an annual figure, so treat it as a description of the fleet rather than a target for one car.

Model reliability file

Lexus RX350 MOT pass rate & common failures

From 659 recorded MOT tests of the Lexus RX350, published by DVSA.

Data updated 29 July 2026

Quick answer

Across 659 MOT tests, 64.3% of Lexus RX350 tests ended in a pass. This figure is not adjusted for age or mileage, so it is not a reliability ranking: the Lexus RX350 fleet does not yet cover a wide enough spread of ages and distances to compare it fairly against other models. Its most commonly recorded failure is 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, which appears in 16.5% of failed tests. Cars of this model average 112,966 miles on the odometer when tested.

At a glance

Recorded pass rate

64.3%unadjusted, not comparable659 tests

We are not publishing a ranking for the RX350. The examples tested do not cover a wide enough spread of ages and mileages to compare it fairly, and an unadjusted pass rate mostly sorts models by how recently they were bought rather than how well they were built. The failure and advisory patterns below come from the same 659 tests and are worth reading on their own terms.

DVSA recorded wording

Most common failure items

Share of failed Lexus RX350 tests in which each item was recorded. One failed test often lists several items, so these do not sum to 100%.

1.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 repaired16.5%
28 occurrencesSuspension mounting corroded or insecure explained
2.Engine MIL illuminated indicating a malfunction13.5%
23 occurrencesEngine management light on, or not working explained
3.Parking brake efficiency below minimum requirement11.8%
20 occurrencesParking brake efficiency too low explained
4.A brake lining or pad worn below 1.5mm11.8%
20 occurrencesBrake drum or shoe worn or contaminated explained
5.A lamp missing, inoperative or in the case of a multiple light source more than 1/2 not functioning10.0%
17 occurrencesLamp not working explained
6.Parking brake inoperative on one side9.4%
16 occurrencesParking brake efficiency too low explained
7.Lambda coefficient outside the default limits or the range specified by the manufacturer8.2%
14 occurrencesEmissions above the permitted limit explained
8.A tyre seriously damaged8.2%
14 occurrencesTyre damaged or deteriorated explained
9.A tyre cords visible or damaged7.6%
13 occurrencesTyre ply or cord exposed, or the casing separating explained
10.Wiper blade missing or obviously not clearing the windscreen7.1%
12 occurrencesWiper or washer not working properly explained

Warnings without a failure

Most common advisories

Share of all Lexus RX350 tests carrying each advisory. The denominator differs from the failure list above because an advisory can be issued on a car that passed.

1.A suspension pin, bush or joint excessively worn38.7%
255 testsSuspension arm bush worn explained
2.Tyre tread depth not in accordance with the requirements22.3%
147 testsTyre worn close to the legal limit explained
3.Fluid leaking excessively and likely to harm the environment or to pose a safety risk to other road users20.9%
138 tests
4.Brake disc or drum excessively weakened, insecure or fractured18.7%
123 testsBrake disc worn, pitted or scored explained
5.A suspension component excessively damaged or corroded12.6%
83 testsSuspension mounting corroded or insecure explained
6.A brake lining or pad worn below 1.5mm12.4%
82 testsBrake drum or shoe worn or contaminated explained
7.A tyre seriously damaged11.2%
74 testsTyre damaged or deteriorated explained
8.Number plate inscription missing or illegible7.3%
48 testsRegistration plate missing, insecure or illegible explained

What gets tested

The RX350 fleet

Average mileage recorded at test: 112,966
Fuel mix of tested cars: Petrol98.6%

Trim names grouped into this model (3)

Recorded exactly as DVSA holds them. Trim-level names are rolled up so one model is not split across a dozen thin pages.

RX350 LIMITED EDITION A
RX350 SE AUTO
RX350 SE-L AUTO

Check a specific Lexus RX350

A model average tells you the pattern. Its own MOT record tells you the car.

Compare within the range

Other Lexus models

Lexus NX — 89.3% adjusted
Lexus CT — 85.0% adjusted
Lexus RX — 88.2% adjusted
Lexus UX — 93.7% unadjusted
Lexus IS — 84.3% adjusted
Lexus IS250 — 73.7% unadjusted
All Lexus models

Common questions

How reliable is the Lexus RX350 compared with other cars?: We do not publish a comparison for the Lexus RX350, because the cars of this model that have been tested do not cover a wide enough range of ages and mileages. Its raw pass rate is 64.3% across 659 tests, but comparing a raw rate between models mostly ranks them by how new they are rather than how good they are. The failure and advisory patterns further down the page are still drawn from real tests and are worth reading.
What is the most common MOT failure on a Lexus RX350?: The item recorded most often is "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", which appears in 16.5% of failed Lexus RX350 tests. Because one failed test can list several items, these shares do not add up to 100%.
What do testers most often warn about on a Lexus RX350?: The most common advisory is "A suspension pin, bush or joint excessively worn", noted on 38.7% of all Lexus RX350 tests. An advisory is not a failure: it flags something that will likely need attention before the next test.
What mileage does a Lexus RX350 usually have at its MOT?: The average odometer reading recorded at test is 112,966 miles. This is the mileage across all tested examples of every age, not an annual figure, so treat it as a description of the fleet rather than a target for one car.

How this was worked out

Method and limits

Figures come from the DVSA anonymised MOT testing dataset, published under the Open Government Licence. Only class 4 initial tests are counted: retests are excluded so a car appears once, and abandoned tests are excluded entirely. No adjusted rate is shown because this model's tested examples do not cover enough of the national age and mileage range for standardisation to mean anything.

An MOT measures whether a car met a legal standard on the day. It is not a breakdown record, a service history or a running-cost estimate, and a pass rate is a property of a fleet rather than a prediction about one car.