1997 Jaguar XK — MOT failures & pass rate
The 1997 Jaguar XK passed 80.7% of its 6,922 recorded MOT tests. Against coupes & convertibles of a similar age (20.9% fail rate), the 1997 XK comes out 1.7pp better. Failures cluster in suspension, lighting & signalling and brakes.
What the MOT record shows
No single area dominates — suspension (8.8%) and lighting & signalling (8.5%) are close, so failures are spread across several systems rather than one weak point.
At component level the recurring items are catalyst emissions, component mounting prescribed areas and headlamp aim — catalyst emissions alone was recorded 406 times.
Condition tracks the odometer closely. Failures run at 10.1% in the 0-30k band and 27.4% in the 150k+ band, a 17.3-point spread — more than double.
Advisories point at the next bill rather than this one: suspension was flagged on 34.7% of tests without failing them.
The trend is improving — the fail rate fell from 21.1% in 2021 to 17.8% in 2025, as the worst-kept examples leave the fleet.
How it compares
Top failure categories
| # | Category | % of tests affected | Tests |
|---|---|---|---|
| 1 | Suspension | 8.8% | 611 |
| 2 | Lighting & signalling | 8.5% | 587 |
| 3 | Brakes | 7.1% | 495 |
| 4 | Emissions & environmental | 3.8% | 266 |
| 5 | Visibility | 3.8% | 265 |
| 6 | Body, structure & corrosion | 3.5% | 245 |
Most common specific failures
The exact components most often recorded as failures — more specific than the categories above.
| # | Failure item | Times recorded |
|---|---|---|
| 1 | Catalyst emissions | 406 |
| 2 | Component mounting prescribed areas | 351 |
| 3 | Headlamp aim | 205 |
| 4 | Anti-lock braking system | 188 |
| 5 | Headlamp | 170 |
| 6 | Washers | 155 |
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 | 34.7% | 2,399 |
| 2 | Brakes | 20.2% | 1,397 |
| 3 | Tyres | 18.0% | 1,244 |
| 4 | Body, structure & corrosion | 10.6% | 731 |
| 5 | Other defects | 8.4% | 579 |
| 6 | Emissions & environmental | 8.3% | 578 |
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 | 257 | 10.1% |
| 30-60k | 1,144 | 12.4% |
| 60-90k | 2,183 | 18.1% |
| 90-120k | 2,090 | 21.6% |
| 120-150k | 918 | 24.9% |
| 150k+ | 321 | 27.4% |
Failure rate by age
Trend over time
| Dataset year | Tests | Fail rate |
|---|---|---|
| 2021 | 1,552 | 21.1% |
| 2022 | 1,489 | 19.4% |
| 2023 | 1,413 | 19.0% |
| 2024 | 1,286 | 18.5% |
| 2025 | 1,182 | 17.8% |
What to check before buying a 1997 XK
On a 1997 XK, suspension is what the MOT record says goes wrong most — it appeared in 8.8% of tests. Check these areas before you commit.
- Suspension (8.8% of tests): Worn drop links, bushes, springs or shocks — listen for knocks over bumps and check for uneven tyre wear. Typical repair: £150–£450 per corner.
- 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 (7.1% 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.
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 1997 Jaguar XKs pass their MOT?
80.7% of the 6,922 1997 Jaguar XK MOT tests in this dataset passed — a 19.3% fail rate.
What is the most common MOT failure on a 1997 Jaguar XK?
Suspension, recorded in 8.8% of tests, followed by lighting & signalling (8.5%).
Does the 1997 XK get worse with mileage?
Its MOT fail rate rises from 10.1% in the 0-30k band to 27.4% in the 150k+ band.
Methodology & source. Based on 6,922 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.