Lexus LS400 MOT pass rate
81.8% of 2,453 Lexus LS400 MOT tests pass.
The LS400 passes 81.8% of the time, noticeably below the figure for the average across all Lexus models (88.9%).
The Lexus LS400 has a pass rate of 81.8%, a little higher than the national average for cars (79.2%).
Own this Lexus LS400?
This is the average across every Lexus LS400 in the dataset. Look up your own registration for its actual MOT history, and a free place to keep its maintenance records.
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Pass rate by vehicle age
| Vehicle age | Pass rate | Tests | Average mileage |
|---|---|---|---|
| 0–3 years | no tests recorded | 0 | no reading |
| 3–6 years | no tests recorded | 0 | no reading |
| 6–10 years | too few tests (2) | 2 | no reading |
| 10–15 years | no tests recorded | 0 | no reading |
| 15+ years | 81.8% | 2,451 | 145,539 miles |
Common MOT failure reasons for the Lexus LS400
The most common reason the Lexus LS400 fails its MOT is suspension — present in 67.0% of failed tests, most often logged as "Prescribed area excessively corroded significantly reducing structural strength".
| Category | Share of failed tests | Example |
|---|---|---|
| Suspension | 67.0% | Prescribed area excessively corroded significantly reducing structural strength |
| Lamps, reflectors and electrical equipment | 57.1% | Not working |
| Brakes | 43.6% | Excessively corroded |
| Noise, emissions and leaks | 31.8% | Lambda reading after 2nd fast idle outside specified limits |
| Tyres | 16.3% | Tread depth below requirements of 1.6mm |
| Body, chassis, structure | 15.1% | Has a major leak of exhaust gases |
| Visibility | 11.8% | Does not clear the windscreen effectively |
| Steering | 9.7% | Gaiter missing or no longer prevents the ingress of dirt |
| Seat belts and supplementary restraint systems | 4.3% | Prescribed area strength or continuity significantly reduced |
| Identification of the vehicle | 3.4% | Inscription illegible |
Related Lexus models
- Lexus GS300 — 80.8% pass rate
- Lexus RC — 94.0% pass rate
- Lexus SC430 — 84.8% pass rate
- Lexus GS450H — 81.7% pass rate
- Lexus LS430 — 84.9% pass rate
- Lexus RX350 — 77.5% pass rate
Frequently asked questions
- What is the MOT pass rate for the Lexus LS400?
- 81.8% of Lexus LS400 MOT tests pass, based on 2,453 tests in the DVSA anonymised MOT tests and results dataset.
- What are the most common MOT failures for the Lexus LS400?
- The most common reason the Lexus LS400 fails its MOT is suspension — present in 67.0% of failed tests, most often logged as "Prescribed area excessively corroded significantly reducing structural strength".
- Does this show the Lexus LS400's service history?
- No — this is MOT test data, which covers roadworthiness, not servicing. A service history is a separate record of maintenance work, which a specific car only has if its owner has kept it. See the Lexus service history guide for how to check and keep one.