2015 Jaguar XK — MOT failures & pass rate
Across 705 MOT tests, the 2015 Jaguar XK recorded a 90.8% pass rate. Against coupes & convertibles of a similar age (11.8% fail rate), the 2015 XK comes out 2.6pp better. Failures cluster in tyres, visibility and lighting & signalling.
What the MOT record shows
No single area dominates — tyres (4.1%) and visibility (2.8%) are close, so failures are spread across several systems rather than one weak point.
At component level the recurring items are wipers, washers and tread depth — wipers alone was recorded 17 times.
Mileage is the strongest signal on the record: 8.6% of 0-30k cars fail, rising to 14.6% once past 60-90k.
Advisories point at the next bill rather than this one: tyres was flagged on 16.2% of tests without failing them.
The trend is improving — the fail rate fell from 12.9% in 2021 to 6.7% in 2025, as the worst-kept examples leave the fleet.
How it compares
Top failure categories
| # | Category | % of tests affected | Tests |
|---|---|---|---|
| 1 | Tyres | 4.1% | 29 |
| 2 | Visibility | 2.8% | 20 |
| 3 | Lighting & signalling | 1.7% | 12 |
| 4 | Suspension | 1.7% | 12 |
| 5 | Brakes | 1.4% | 10 |
| 6 | Emissions & environmental | 0.6% | 4 |
Most common specific failures
The exact components most often recorded as failures — more specific than the categories above.
| # | Failure item | Times recorded |
|---|---|---|
| 1 | Wipers | 17 |
| 2 | Washers | 12 |
| 3 | Tread depth | 12 |
| 4 | Headlamp aim | 9 |
| 5 | Ball joint dust cover | 8 |
| 6 | Brake pads | 7 |
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 | 16.2% | 114 |
| 2 | Brakes | 8.4% | 59 |
| 3 | Suspension | 4.7% | 33 |
| 4 | Visibility | 1.6% | 11 |
| 5 | Other defects | 1.6% | 11 |
| 6 | Emissions & environmental | 1.3% | 9 |
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 | 394 | 8.6% |
| 30-60k | 259 | 9.3% |
| 60-90k | 48 | 14.6% |
Failure rate by age
Trend over time
| Dataset year | Tests | Fail rate |
|---|---|---|
| 2021 | 163 | 12.9% |
| 2022 | 137 | 6.6% |
| 2023 | 142 | 13.4% |
| 2024 | 129 | 5.4% |
| 2025 | 134 | 6.7% |
What to check before buying a 2015 XK
On a 2015 XK, tyres is what the MOT record says goes wrong most — it appeared in 4.1% of tests. Check these areas before you commit.
- Tyres (4.1% 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 (2.8% 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 (1.7% 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 Jaguar XKs pass their MOT?
90.8% of the 705 2015 Jaguar XK MOT tests in this dataset passed — a 9.2% fail rate.
What is the most common MOT failure on a 2015 Jaguar XK?
Tyres, recorded in 4.1% of tests, followed by visibility (2.8%).
Does the 2015 XK get worse with mileage?
Its MOT fail rate rises from 8.6% in the 0-30k band to 14.6% in the 60-90k band.
Methodology & source. Based on 705 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.