2001 Jaguar S-Type 3.0L Petrol · SL51 CWO

A dominant concern for this 2001 Jaguar S‑Type is the progressive corrosion that has compromised the rear integral body structure and several elements of the braking system. The 2023‑11‑28 failure recorded a significantly reduced rigidity of the outer sill, while earlier and later tests repeatedly flagged corroded brake hoses, a brake pipe coated in grease‑laden rust and, most recently, tyre tread approaching the legal limit. Although the 2025‑12‑16 MOT was passed, the pattern shows a steady accumulation of corrosion‑related advisories rather than a clean bill of health. At 127,271 mi the car averages roughly 5,100 mi per year, a mileage level that is low for a twenty‑five‑year‑old vehicle. Such limited annual use can mean reduced wear on wear‑items, yet it also suggests periods of inactivity during which rubber components and protective coatings may have aged. The MOT record is continuous with no multi‑year gaps, indicating the vehicle has been regularly inspected, but the low mileage does not guarantee that corrosion‑prone areas have been protected from environmental exposure. Prospective buyers should give particular attention to the rear sill and outer subframe. Look for flex or audible creaking when applying torque to the rear wheels, and check for any visual rust that appears to have penetrated the metal. The brake hoses on both rear sides have been noted for slight ferrule corrosion; inspect them for soft spots, fluid seepage or a spongy pedal feel. The front‑to‑rear brake pipe, repeatedly described as corroded and greased, should be examined for rust deposits and tested for pressure loss, as a compromised pipe can lead to reduced braking efficiency. Rear brake discs were flagged as pitted; verify disc surface uniformity and listen for a high‑pitched squeal or pulsation under braking. The off‑side front lower suspension arm ball joint and the near‑side track‑rod end have both shown play in recent advisories, so a test‑drive should include firm braking and cornering to detect knocking, steering wander or uneven tyre wear. The power‑steering system suffered a major failure in 2021, with an empty reservoir and loss of assist; confirm that the pump delivers smooth assistance and that the fluid level remains stable, watching for any whining or loss of steering feel. Given the corrosion history, a thorough professional inspection of the rear subframe, brake lines, hoses and suspension bushings is advisable before committing, and budgeting for replacement of these items would be prudent to restore reliable roadworthiness.