2015 Lexus Nx — MOT failures & pass rate
16,647 MOT tests on the 2015 Lexus Nx are in this dataset, and 92.4% of them passed. Against mid-size SUVs of a similar age (15.8% fail rate), the 2015 Nx comes out 8.2pp better. Failures cluster in tyres, visibility and lighting & signalling.
What the MOT record shows
No single area dominates — tyres (3.6%) and visibility (3.3%) 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 brake pads — wipers alone was recorded 591 times.
Mileage is the strongest signal on the record: 4.7% of 0-30k cars fail, rising to 13.0% once past 150k — 2.8× the risk.
Fuel type barely separates them — hybrid fails 7.6% of the time against 7.6% for petrol.
Advisories point at the next bill rather than this one: tyres was flagged on 22.2% of tests without failing them.
The trend is worsening — 5.9% of tests failed in 2021 against 9.7% in 2025, the usual pattern as a fleet ages.
How it compares
Top failure categories
| # | Category | % of tests affected | Tests |
|---|---|---|---|
| 1 | Tyres | 3.6% | 601 |
| 2 | Visibility | 3.3% | 553 |
| 3 | Lighting & signalling | 1.9% | 322 |
| 4 | Brakes | 1.8% | 304 |
| 5 | Suspension | 1.7% | 281 |
| 6 | Body, structure & corrosion | 0.4% | 60 |
Most common specific failures
The exact components most often recorded as failures — more specific than the categories above.
| # | Failure item | Times recorded |
|---|---|---|
| 1 | Wipers | 591 |
| 2 | Headlamp aim | 258 |
| 3 | Brake pads | 257 |
| 4 | Pins and bushes | 200 |
| 5 | Tread depth | 183 |
| 6 | Tyre pressure monitoring system | 180 |
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 | 22.2% | 3,689 |
| 2 | Brakes | 14.1% | 2,347 |
| 3 | Suspension | 10.2% | 1,693 |
| 4 | Other defects | 6.5% | 1,078 |
| 5 | Visibility | 3.7% | 609 |
| 6 | Steering | 0.2% | 38 |
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 | 1,332 | 4.7% |
| 30-60k | 6,999 | 6.2% |
| 60-90k | 5,549 | 8.8% |
| 90-120k | 1,989 | 10.3% |
| 120-150k | 532 | 9.8% |
| 150k+ | 246 | 13.0% |
Failure rate by age
By fuel type
| Fuel | Tests | Fail rate |
|---|---|---|
| Hybrid | 16,042 | 7.6% |
| Petrol | 575 | 7.6% |
| Other | 30 | 6.7% |
Trend over time
| Dataset year | Tests | Fail rate |
|---|---|---|
| 2021 | 3,257 | 5.9% |
| 2022 | 3,326 | 7.0% |
| 2023 | 3,293 | 6.9% |
| 2024 | 3,383 | 8.6% |
| 2025 | 3,388 | 9.7% |
What to check before buying a 2015 Nx
On a 2015 Nx, tyres is what the MOT record says goes wrong most — it appeared in 3.6% of tests. Check these areas before you commit.
- Tyres (3.6% 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.
- Visibility (3.3% 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.
- Lighting & signalling (1.9% of tests): Often a cheap bulb, but persistent issues can mean wiring or corrosion in the units. Typical repair: £10–£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 2015 Lexus Nxs pass their MOT?
92.4% of the 16,647 2015 Lexus Nx MOT tests in this dataset passed — a 7.6% fail rate.
What is the most common MOT failure on a 2015 Lexus Nx?
Tyres, recorded in 3.6% of tests, followed by visibility (3.3%).
Does the 2015 Nx get worse with mileage?
Its MOT fail rate rises from 4.7% in the 0-30k band to 13.0% in the 150k+ band.
Methodology & source. Based on 16,647 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.