Here's what you're likely looking at:
Engine:
* Corrosion: Metal components, especially the engine block, cylinder head, and exhaust system, will be highly susceptible to rust and corrosion.
* Fuel System Issues: Fuel will have likely degraded, gumming up the fuel lines, injectors, and possibly the fuel pump.
* Oil and Coolant: Fluids will have degraded, causing potential damage to seals, gaskets, and internal engine components.
* Battery: The battery is completely dead, and may be beyond repair.
* Starter: Moisture and corrosion can seize the starter motor.
Electrical System:
* Wiring: Moisture and rodents can wreak havoc on electrical wiring, potentially leading to short circuits, corrosion, and malfunctions.
* Sensors: Sensors, especially those exposed to the elements, will likely be faulty or damaged.
* Electrical Components: Moisture can damage electrical components like the alternator, distributor, and ignition system.
Other Components:
* Tires: Tires will be flat, dry-rotted, and unusable.
* Brakes: Brake pads and rotors will be rusted, and brake fluid will be degraded.
* Suspension: Rubber components like bushings, mounts, and seals will be dry and cracked.
* Body: The paint will be faded, and rust will be present on the body panels and undercarriage.
* Interior: The interior will be dusty, dirty, and possibly moldy.
Getting Your XJS Back on the Road:
* Professional Inspection: The first step is to have a qualified mechanic perform a thorough inspection to assess the extent of the damage and provide a realistic estimate for repairs.
* Comprehensive Service: This will likely involve a complete engine rebuild, replacement of all fluids, and repair or replacement of numerous components.
* Potential Costs: Expect significant expenses, potentially exceeding the car's current market value.
Before You Start:
* Evaluate Costs vs. Value: Consider whether it's financially viable to restore the XJS, especially given its age and condition.
* Parts Availability: Parts for older cars like the XJS can be challenging to find and expensive.
* Emotional Attachment: If you're emotionally attached to the car, it might be worth the investment.
It's important to remember: Bringing an XJS back to life after five years of neglect is a massive undertaking. It's crucial to approach this project with realistic expectations and a significant financial commitment.