Lexus Is 300H Premier MOT pass rate & common failures
Across 2 model years and 1,086 tests, the Lexus Is 300H Premier passes its MOT 89.4% of the time. All cars of a similar age fail 20.1% of the time, so this is 9.5pp better than the group it competes with. Its most common failure areas are tyres, lighting & signalling and visibility.
What the MOT record shows
No single area dominates — tyres (6.5%) and lighting & signalling (4.0%) are close, so failures are spread across several systems rather than one weak point.
At component level the recurring items are wipers, headlamp aim and tyre pressure monitoring system — wipers alone was recorded 24 times.
Mileage is the strongest signal on the record: 0.0% of 0-30k cars fail, rising to 17.9% once past 150k — 178.6× the risk.
Tyres is the most common advisory, noted on 23.8% of tests — work that passed today but is likely due soon.
The trend is worsening — 5.7% of tests failed in 2021 against 13.4% in 2025, the usual pattern as a fleet ages.
How it compares
By model year
Every Is 300H Premier model year with a usable sample. Years with their own detailed report are linked.
| Year | Tests | Pass rate | Fail rate | Most common failure |
|---|---|---|---|---|
| 2013 | 1,080 | 89.3% | 10.7% | Tyres |
Most common failures (all years)
| # | Category | % of tests affected | Tests |
|---|---|---|---|
| 1 | Tyres | 6.5% | 71 |
| 2 | Lighting & signalling | 4.0% | 44 |
| 3 | Visibility | 2.0% | 22 |
| 4 | Brakes | 1.8% | 19 |
| 5 | Suspension | 0.7% | 8 |
| 6 | Road wheels | 0.2% | 2 |
| 7 | Other defects | 0.1% | 1 |
| 8 | Emissions & environmental | 0.1% | 1 |
Most common specific failures
The exact components most often recorded as failures — more specific than the categories above.
| # | Failure item | Times recorded |
|---|---|---|
| 1 | Wipers | 24 |
| 2 | Headlamp aim | 23 |
| 3 | Tyre pressure monitoring system | 16 |
| 4 | Tread depth | 14 |
| 5 | Headlamp | 14 |
| 6 | Service brake performance | 13 |
| 7 | Brake discs | 9 |
| 8 | Brake pads | 9 |
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 | 23.8% | 258 |
| 2 | Brakes | 12.3% | 134 |
| 3 | Other defects | 5.0% | 54 |
| 4 | Suspension | 4.4% | 48 |
| 5 | Visibility | 4.0% | 43 |
| 6 | Emissions & environmental | 1.5% | 16 |
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 | 30 | 0.0% |
| 30-60k | 345 | 7.2% |
| 60-90k | 399 | 11.5% |
| 90-120k | 183 | 14.8% |
| 120-150k | 73 | 9.6% |
| 150k+ | 56 | 17.9% |
Failure rate by age
Trend over time
| Dataset year | Tests | Fail rate |
|---|---|---|
| 2021 | 211 | 5.7% |
| 2022 | 226 | 12.4% |
| 2023 | 209 | 9.1% |
| 2024 | 216 | 12.0% |
| 2025 | 224 | 13.4% |
What to check before buying a Lexus Is 300H Premier
- Tyres (6.5% 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 (4.0% of tests): Often a cheap bulb, but persistent issues can mean wiring or corrosion in the units. Typical repair: £10–£150.
- Visibility (2.0% 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 Is 300H Premier?
89.4% of the 1,086 Lexus Is 300H Premier MOT tests in this dataset passed, a 10.6% fail rate, across model years 2013–2014.
What does the Lexus Is 300H Premier most often fail its MOT on?
Tyres, recorded in 6.5% of tests, then lighting & signalling (4.0%).
How much does mileage affect Is 300H Premier MOT results?
Fail rates run at 0.0% for cars in the 0-30k band and 17.9% for 150k+, a 17.9-point difference.
Methodology & source. Based on 1,086 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.