2009 Jaguar XK 5.0L Petrol · E4 GCT

The vehicle is currently roadworthy as confirmed by its most recent MOT on 2025-10-09 at 117,667 miles, but the maintenance trend shows a clear and progressive worsening of structural corrosion, particularly affecting both front and rear sub-frames and rear brake pipes. All three most recent tests have recorded sub-frame corrosion rated as “not seriously weakened”, yet the 2025 test adds two new corrosion advisories on the rear brake pipes — both described as corroded and covered in grease or other material — indicating advancing deterioration in critical hydraulic components. This is not an isolated issue: the 2022 test flagged fluctuating service brakes, and recurring tyre cracking across multiple years suggests long-standing exposure to environmental stress or inconsistent storage conditions. Mileage accumulation has been steady and broadly consistent with average use — 4,827 miles between October 2024 and October 2025, 5,543 miles between October 2023 and October 2024, and just 964 miles between October 2022 and October 2023 — pointing to a period of markedly reduced use during late 2022 and early 2023. That low-mileage interval coincides with the first appearance of widespread tyre perishing and brake fluctuation, reinforcing the likelihood that extended static periods contributed to rubber degradation and caliper binding rather than high-mileage wear alone. A buyer must inspect the entire rear brake system in detail, especially the condition and flexibility of both rear brake pipes, as well as the integrity of mounting points and rubber hoses where corrosion may be hidden beneath grease or underbody sealant. The front and rear sub-frames require close visual and tactile examination for flaking, pitting, or loss of section thickness — particularly around bolt holes and weld seams — since repeated advisories indicate this is no longer superficial surface rust. Tyres should be treated as time-expired regardless of tread depth, given the documented cracking across all four corners in both 2021 and 2022, and suspension bushes, coil springs, and rear axle mounts warrant scrutiny given the car’s age, mileage, and persistent corrosion pattern.