2007 Jaguar XK 4.2L Petrol · JC52 TAM

The 2007 Jaguar XK’s latest MOT test on 2025-10-13 resulted in a passing grade, though it included a persistent advisory regarding rear sub-frame corrosion that has been noted in multiple previous tests, most recently in 2021. While the vehicle has otherwise maintained a clean MOT history since 2024, the recurring corrosion advisories—particularly the severe corrosion of brake hose ferrules in 2021—demonstrate a pattern of underlying structural and mechanical wear that requires vigilant attention. The absence of major failures since 2021 suggests a stable maintenance trend, but the consistent presence of advisories—especially those related to corrosion and brake hose integrity—indicates that the vehicle has not been fully protected against environmental degradation, particularly in areas prone to moisture exposure, such as the sub-frame and brake systems. The recorded mileage of 123,842 miles for a vehicle aged 19 years represents a moderate annual usage rate of approximately 6,518 miles per year, which is within the expected range for a car of this age and class. However, the mileage data alone does not fully explain the corrosion patterns observed in the MOT history, as lower-mileage vehicles can still suffer from prolonged exposure to damp conditions, leading to accelerated rust formation in critical components like the rear sub-frame and brake hoses. The rapid accumulation of mileage in the final years before the 2021 MOT failure—where the brake hose ferrules failed—suggests either more aggressive driving or potential neglect in addressing minor corrosion issues earlier. This could imply that the vehicle’s wear rate is higher than typical for its age, warranting closer scrutiny of fluid integrity, brake system maintenance, and corrosion mitigation measures. For the prospective buyer, the most critical areas to inspect are the rear sub-frame and brake hose ferrules, as these have been recurrent failure points. Visually examine the rear sub-frame for signs of deeper rust penetration beyond what was noted in the MOT, particularly around welds and exposed metal surfaces, and check for any structural weakening that could compromise the vehicle’s handling or safety. During a test drive, listen for irregularities in the brake system, such as a grinding noise when applying brakes (indicative of corroded or worn brake discs) or a spongy or uneven pedal feel (suggesting brake hose failure or caliper binding). The brake hoses themselves should be inspected for cracks, bulges, or leaks, as their failure can lead to catastrophic brake failure. Additionally, check the rear tyres for uneven wear patterns, which may signal suspension or alignment issues exacerbated by the nearside rear anti-roll bar linkage play noted in earlier MOTs; listen for clunking or rattling when driving over bumps, as this may reveal worn suspension bushes or loose components. Beyond the mechanical checks, the buyer should also assess the vehicle’s overall condition for signs of age-related deterioration. Given the vehicle’s age and the recorded mileage, inspect the tyre sidewalls for signs of perishing or cracking, which can compromise tyre integrity and safety. Verify the health of the 12V battery, as prolonged standing or infrequent use can lead to sulphation or reduced capacity, and check for corrosion around terminals. Fluid servicing should be timed according to the manufacturer’s recommendations, with particular attention to brake fluid, which can absorb moisture over time and degrade brake performance. Finally, review the service history for any evidence of corrosion prevention treatments, such as anti-rust sprays applied to the sub-frame or brake components, and ensure that all fluid levels and conditions are up to standard. If the vehicle has been stored for extended periods, consider a thorough inspection of the exhaust system for signs of corrosion or leaks, as the Jaguar’s exhaust layout is prone to moisture ingress.