Lexus RX400 MOT pass rate and common failures
In 2025, 68.0% of Lexus RX400 MOT tests were a first-time pass, across 721 tests in Great Britain. For all cars it was 71.5%.
Compared with cars of the same age
Older cars fail more often, so a model that’s mostly a few years old will look better than one that’s mostly 12. These figures compare like with like.
At 3–5 years
–
Too few tests at this age to say.
At 6–10 years
–
Too few tests at this age to say.
At 11 years and over
67.5%
All cars: 61.3% (6.2 points better). 695 tests.
Pass rate by age
Figures by age, with typical mileage
| Age (years) | Tests | First-time pass | All cars | Typical mileage |
|---|---|---|---|---|
| 16 | 100 | 58.0% | 57.5% | 141,250 miles |
| 17 | 214 | 71.0% | 57.2% | 141,250 miles |
| 18 | 209 | 65.1% | 57.0% | 143,750 miles |
| 19 | 172 | 71.5% | 57.2% | 151,250 miles |
Typical mileage is the median reading at the test, to the nearest 2,500 miles.
What fails most often
The share of Lexus RX400 MOT tests that failed on at least one item in each area, against all cars. A test can fail on several areas at once.
| Area | RX400 | All cars |
|---|---|---|
| Lamps, reflectors and electrical equipment | 23.6% | 16.6% |
| Suspension | 17.9% | 13.7% |
| Brakes | 13.9% | 10.2% |
| Tyres | 7.6% | 8.4% |
| Body, chassis, structure | 5.8% | 4.2% |
| Visibility | 3.5% | 5.2% |
| Steering | 1.5% | 2.5% |
| Identification of the vehicle | 1.2% | 0.4% |
Most common reasons for failing
- Position lamp: not working failed 8.0% of tests · what this means
- Component mounting prescribed areas: prescribed area excessively corroded significantly reducing structural strength failed 5.0% of tests
- Pins and bushes: pin or bush excessively worn failed 3.1% of tests · what this means
- Registration plate lamp(s): inoperative in the case of a single lamp or all lamps failed 2.9% of tests · what this means
- Tread depth below requirements of 1.6mm failed 2.8% of tests
- Headlamp: not working on dipped beam failed 2.6% of tests · what this means
- Ball joint dust cover no longer prevents the ingress of dirt failed 2.5% of tests · what this means
- Headlamp aim: too high failed 2.4% of tests · what this means
- Condition: has a cut in excess of the requirements deep enough to reach the ply or cords failed 2.2% of tests
- Headlamp aim: too low failed 2.1% of tests · what this means
Checking a particular RX400?
See its own MOT history, mileage record and advisories in plain English. Free, no sign-up.
About these figures
- They cover every RX400 version DVSA records under this name (engines, trims and generations together), on its first MOT test of each visit. A “pass with rectification” (fixed within an hour) counts as a fail, as in DVSA’s own statistics.
- Cars under three years old are left out, because the few tested that young are mostly taxis.
- Fuel mix of the cars tested: hybrid electric (clean) 91.4%, petrol 2.8%, hybrid electric (clean) 2.2%.
- A pass rate describes the model, not any one car. How a car has been looked after matters more.
Download these figures (CSV) · Other Lexus models · All makes
Source: DVSA anonymised MOT test data for 2025. Contains public sector information licensed under the Open Government Licence v3.0. Our own analysis; not produced or endorsed by DVSA.