Lexus Rx 400H Ltd Edtn Exec MOT pass rate & common failures
The Lexus Rx 400H Ltd Edtn Exec appears in 422 MOT tests spanning model years 2009–2009, and 84.1% of them passed. That is 9.6 percentage points better than all cars of a similar age, which fail at 25.5%. Its most common failure areas are lighting & signalling, brakes and visibility.
What the MOT record shows
No single area dominates — lighting & signalling (8.5%) and brakes (6.6%) are close, so failures are spread across several systems rather than one weak point.
At component level the recurring items are position lamp, tread depth and headlamp aim — position lamp alone was recorded 24 times.
Condition tracks the odometer closely. Failures run at 15.4% in the 60-90k band and 20.3% in the 150k+ band, a 5.0-point spread.
Advisories point at the next bill rather than this one: suspension was flagged on 37.0% of tests without failing them.
The trend is worsening — 13.5% of tests failed in 2021 against 15.0% in 2025, the usual pattern as a fleet ages.
How it compares
By model year
Every Rx 400H Ltd Edtn Exec model year with a usable sample. Years with their own detailed report are linked.
| Year | Tests | Pass rate | Fail rate | Most common failure |
|---|---|---|---|---|
| 2009 | 422 | 84.1% | 15.9% | Lighting & signalling |
Most common failures (all years)
| # | Category | % of tests affected | Tests |
|---|---|---|---|
| 1 | Lighting & signalling | 8.5% | 36 |
| 2 | Brakes | 6.6% | 28 |
| 3 | Visibility | 5.2% | 22 |
| 4 | Tyres | 5.2% | 22 |
| 5 | Suspension | 5.0% | 21 |
| 6 | Body, structure & corrosion | 1.9% | 8 |
| 7 | Other defects | 0.7% | 3 |
| 8 | Emissions & environmental | 0.5% | 2 |
Most common specific failures
The exact components most often recorded as failures — more specific than the categories above.
| # | Failure item | Times recorded |
|---|---|---|
| 1 | Position lamp | 24 |
| 2 | Tread depth | 19 |
| 3 | Headlamp aim | 17 |
| 4 | Wipers | 14 |
| 5 | Brake pads | 12 |
| 6 | Brake discs | 10 |
| 7 | Washers | 8 |
| 8 | Service brake performance | 8 |
Top advisory categories
Advisories aren't failures, but they flag work likely needed soon — useful when budgeting.
| # | Category | % of tests with advisory | Tests |
|---|---|---|---|
| 1 | Suspension | 37.0% | 156 |
| 2 | Tyres | 25.1% | 106 |
| 3 | Brakes | 19.0% | 80 |
| 4 | Other defects | 10.4% | 44 |
| 5 | Lighting & signalling | 9.7% | 41 |
| 6 | Body, structure & corrosion | 8.3% | 35 |
Failure rate by mileage
Higher-mileage cars tend to fail more — often the most useful guide to real condition.
| Mileage band | Tests | Fail rate |
|---|---|---|
| 60-90k | 91 | 15.4% |
| 90-120k | 98 | 10.2% |
| 120-150k | 111 | 18.0% |
| 150k+ | 113 | 20.3% |
Failure rate by age
By fuel type
| Fuel | Tests | Fail rate |
|---|---|---|
| Hybrid | 348 | 16.4% |
| Other | 32 | 15.6% |
Trend over time
| Dataset year | Tests | Fail rate |
|---|---|---|
| 2021 | 89 | 13.5% |
| 2022 | 83 | 14.5% |
| 2023 | 79 | 13.9% |
| 2024 | 91 | 22.0% |
| 2025 | 80 | 15.0% |
What to check before buying a Lexus Rx 400H Ltd Edtn Exec
- Lighting & signalling (8.5% of tests): Often a cheap bulb, but persistent issues can mean wiring or corrosion in the units. Typical repair: £10–£150.
- Brakes (6.6% of tests): Pads/discs are routine wear; binding, imbalance or corroded pipes are more serious — test for pulling under braking. Typical repair: £100–£350 per axle.
- Visibility (5.2% of tests): Wipers, washers, mirrors and screen damage — usually inexpensive, but check for chips in the driver's line of sight. Typical repair: £15–£150.
Repair costs are rough UK ballpark ranges to set expectations, not quotes — actual prices vary widely by car, parts and garage.
Frequently asked questions
What is the MOT pass rate for the Lexus Rx 400H Ltd Edtn Exec?
84.1% of the 422 Lexus Rx 400H Ltd Edtn Exec MOT tests in this dataset passed, a 15.9% fail rate, across model years 2009–2009.
What does the Lexus Rx 400H Ltd Edtn Exec most often fail its MOT on?
Lighting & signalling, recorded in 8.5% of tests, then brakes (6.6%).
How much does mileage affect Rx 400H Ltd Edtn Exec MOT results?
Fail rates run at 15.4% for cars in the 60-90k band and 20.3% for 150k+, a 5.0-point difference.
Methodology & source. Based on 422 MOT tests. Dataset: DVSA MOT testing data (2021,2022,2023,2024,2025). Data last updated 2026-07-27. Figures reflect MOT-testable defects only — read the methodology for how these are calculated and what they don't measure.