Positioning:
The Jaguar XJS, particularly in its later iterations, was a luxurious grand tourer, a successor to the iconic E-Type, offering a blend of performance and refined comfort.
Competitors:
Competed with other luxury GT cars of its era, such as the BMW 8 Series, Mercedes-Benz SL, and Aston Martin models, though often at a more accessible price point.
Design Philosophy:
Long hood, sleek profile, and powerful engine options characterized its design. The facelifted models refined the styling and improved practicality.
Manual Purpose:
To provide comprehensive, step-by-step guidance for the maintenance, repair, and servicing of the Jaguar XJS for owners and technicians.
Engine Mechanical:
Detailed procedures for disassembly, assembly, repair, and adjustment of all engine components.
Fuel System:
Fuel injection system diagnosis, repair, and adjustment for both V12 and 6-cylinder engines.
Ignition System:
Spark plug replacement, ignition coil testing, distributor (if applicable), and timing adjustments.
Cooling System:
Radiator, water pump, thermostat, hoses, and fan replacement and repair.
Exhaust System:
Catalytic converter replacement, muffler and pipe repair, and gasket replacement.
Transmission Manual:
Repair, overhaul, and adjustment of manual gearboxes (where applicable).
Transmission Automatic:
Diagnosis, service, and repair of automatic transmissions, including fluid and filter changes.
Drivetrain:
Driveshaft, universal joints, differential, and axle repairs.
Suspension Front:
Component replacement (ball joints, control arms, springs, shock absorbers), alignment specifications.
Suspension Rear:
Independent rear suspension component service, bushings, shock absorbers, and alignment.
Steering System:
Power steering pump, rack and pinion, steering column repair, and fluid services.
Braking System:
Brake pad and rotor replacement, caliper service, hydraulic system bleeding, ABS diagnosis (if equipped).
Electrical System:
Wiring diagrams, component testing, starter, alternator, battery services, lighting systems.
Climate Control:
Air conditioning system servicing, heater core replacement, blower motor, and control panel diagnostics.
Body Panels:
Door, hood, trunk panel removal and installation, latch mechanisms, and hinge adjustments.
Interior Trim:
Seat removal, dashboard components, trim panel access, and carpet replacement procedures.
Maintenance:
Scheduled maintenance tasks, fluid changes, filter replacements, and general upkeep.
Troubleshooting:
Diagnostic charts, common problems, and step-by-step troubleshooting guides for various systems.
Repair:
Detailed instructions for component removal, repair, and reinstallation.
Installation:
Procedures for installing new or replacement parts and accessories.
Disassembly Assembly:
Comprehensive guides for taking apart and putting back together vehicle components and systems.
Adjustments:
Specific instructions for calibrating and adjusting various vehicle systems (e.g., throttle, ignition timing, suspension).
Depth:
Comprehensive, bumper-to-bumper coverage suitable for professional technicians and experienced DIY enthusiasts.
Diagnostic Focus:
Includes diagnostic procedures, specifications, and troubleshooting flowcharts.
Diagrams:
Detailed illustrations, exploded diagrams, drawings, and photos for clarity.
Special Tools:
References special service tool numbers and their usage.
Wear Limits:
Includes specifications for wear limits on various components.
Torque Values:
Provides essential torque specifications for threaded connections and component assembly.
Oil Change Interval:
Typically every 5,000-7,500 miles or 6-12 months, but consult the specific manual for precise recommendations.
Spark Plug Replacement:
Varies by engine; e.g., 30,000 miles for some V12 applications.
Engine Oil Type:
Refer to manual for specific viscosity (e.g., 10W-40, 15W-50) and API service classification.
Coolant Type:
Ethylene glycol based, typically a 50/50 mix with distilled water. Specific Jaguar recommendations should be followed.
Transmission Fluid Automatic:
Dexron II or equivalent for ZF transmissions. Check manual for precise specification.
Brake Fluid Type:
DOT 3 or DOT 4, depending on system requirements. Consult manual for specific recommendation.
Electrical Reliability:
Can be prone to minor electrical gremlins due to age and complexity of wiring harnesses.
Cooling System Leaks:
Hose degradation and potential leaks in the V12 engine's complex cooling system are common.
Suspension Bushings:
Wear in rubber suspension bushings can lead to handling vagueness and noise.
Rust Corrosion:
As with many cars of this era, rust can be a concern, particularly around wheel arches, sills, and the subframes.