2021 Lexus Ux 300E — MOT failures & pass rate
Across 2,105 MOT tests analysed for the 2021 Lexus Ux 300E, the most common recorded failure areas were tyres, lighting & signalling and visibility. Its pass rate of 96.1% was above the average for cars of a similar age (91.2%).
How it compares
Top failure categories
| # | Category | % of tests affected | Tests |
|---|---|---|---|
| 1 | Tyres | 3.0% | 64 |
| 2 | Lighting & signalling | 1.6% | 33 |
| 3 | Visibility | 1.2% | 25 |
| 4 | Seat belts & restraints | 0.2% | 5 |
| 5 | Brakes | 0.2% | 4 |
| 6 | Other defects | 0.1% | 3 |
Most common specific failures
The exact components most often recorded as failures — more specific than the categories above.
| # | Failure item | Times recorded |
|---|---|---|
| 1 | Headlamp aim | 40 |
| 2 | Wipers | 26 |
| 3 | Tread depth | 26 |
| 4 | Tyre pressure monitoring system | 7 |
| 5 | Washers | 5 |
| 6 | Registration plates | 4 |
Top advisory categories
Advisories aren't failures, but they flag work likely needed soon — useful when budgeting.
| # | Category | % of tests with advisory | Tests |
|---|---|---|---|
| 1 | Tyres | 16.1% | 338 |
| 2 | Other defects | 3.1% | 66 |
| 3 | Visibility | 2.5% | 53 |
| 4 | Brakes | 1.7% | 35 |
| 5 | Body, structure & corrosion | 0.2% | 4 |
| 6 | Lighting & signalling | 0.1% | 3 |
Failure rate by mileage
Higher-mileage cars tend to fail more — often the most useful guide to real condition.
| Mileage band | Tests | Fail rate |
|---|---|---|
| 0-30k | 1,564 | 2.9% |
| 30-60k | 507 | 6.7% |
| 60-90k | 33 | 6.1% |
Failure rate by age
Trend over time
| Dataset year | Tests | Fail rate |
|---|---|---|
| 2024 | 1,023 | 4.2% |
| 2025 | 1,056 | 3.7% |
What to check before buying a 2021 Ux 300E
Before buying a 2021 Lexus Ux 300E, focus on the areas it most often fails on. Tyres accounted for 3.0% of tests for this year.
- Tyres (3.0% of tests): Usually a quick, known-cost fix, but check tread, age and uneven wear (which can hint at alignment or suspension issues). Typical repair: £50–£120 per tyre.
- Lighting & signalling (1.6% of tests): Often a cheap bulb, but persistent issues can mean wiring or corrosion in the units. Typical repair: £10–£150.
- Visibility (1.2% 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
How many 2021 Lexus Ux 300Es pass their MOT?
96.1% of the 2,105 2021 Lexus Ux 300E MOT tests in this dataset passed — a 3.9% fail rate.
What is the most common MOT failure on a 2021 Lexus Ux 300E?
Tyres, recorded in 3.0% of tests, followed by lighting & signalling (1.6%).
Does the 2021 Ux 300E get worse with mileage?
Its MOT fail rate rises from 2.9% in the 0-30k band to 6.1% in the 60-90k band.
Methodology & source. Based on 2,105 MOT tests. Dataset: DVSA MOT testing data (2021,2022,2023,2024,2025). Data last updated 2026-07-01. Figures reflect MOT-testable defects only — read the methodology for how these are calculated and what they don't measure.