Era:
Late 1980s / Early 1990s
Key Competitors:
BMW 7 Series, Mercedes-Benz S-Class, Audi V8 Quattro
Distinctive Features:
Sophisticated ride, powerful inline-six engines, classic British luxury, advanced (for its time) electronic systems.
User Profile:
Professional mechanics, DIY enthusiasts, owners seeking to maintain or repair their classic Jaguar.
Powertrain:
Engine (AJ6 3.6L, AJ6 4.0L), Transmission (ZF 4HP-22/24), Differential
Chassis:
Suspension (Independent Rear Suspension - IRS), Steering, Brakes (ABS), Wheels and Tires
Electrical:
Engine Management (ECU), Ignition, Lighting, Instrumentation, HVAC Controls, Power Accessories, Body Electrical, Wiring Schematics
Body And Interior:
Body Panels, Doors, Glass, Seats, Trim, Exterior Trim, Bumpers
Maintenance:
Scheduled Maintenance, Fluid Changes, Filter Replacements, Lubrication
Repair:
Engine Overhaul, Transmission Rebuild, Suspension Component Replacement, Brake System Service, Electrical Component Diagnosis and Repair, Body Panel Repair
Troubleshooting:
Diagnostic Procedures, Fault Finding Charts, Common Issues and Solutions
Technical Data:
Torque Specifications, Clearances, Diagnostic Trouble Codes (DTCs), Component Testing Procedures
Depth:
Comprehensive: Covers basic maintenance to complete engine and transmission rebuilds, including detailed diagnostic procedures and wiring diagrams.
Transmission Type:
4-Speed Automatic
Transmission Manufacturer Standard:
ZF
Transmission Model Standard:
4HP-22 / 4HP-24
Transmission Type Optional:
5-Speed Manual (Rare)
Transmission Features:
Electronically controlled shift points, Sport mode.
Safety Ratings:
Not extensively rated by modern standards, but features inherent safety design of its era.
Active Safety Features:
Anti-lock Braking System (ABS), Power-assisted steering, Four-wheel disc brakes
Passive Safety Features:
Energy-absorbing steering column, Side-impact beams, Seat belts (front and rear), Reinforced passenger cell.
Audio System:
Factory AM/FM Cassette Player with amplifier, optional CD player.
Climate Control:
Automatic Climate Control (HVAC) with cabin air filter.
Cruise Control:
Standard electronic cruise control.
Navigation:
N/A (No factory navigation system available for this model year)
Connectivity Features:
N/A (Basic analog systems)
Oil Change Interval:
Every 3,000-5,000 miles or 6 months (depending on usage and oil type)
Transmission Fluid Change:
Every 30,000-50,000 miles (ZF specification)
Engine Oil Type Primary:
API SG/SH, SAE 10W-40 or 15W-50 (check manual for specific climate recommendations)
Transmission Fluid Type:
ZF TE-ML 11A or equivalent (e.g., Dexron III)
Coolant Type:
Ethylene glycol-based coolant with corrosion inhibitors (e.g., Jaguar specific or equivalent)
Common Faults:
Head gasket leaks, starter motor issues, headlight leveling system (Hydrolastic), ABS warning light illumination, electrical gremlins (especially aged wiring and connectors), rust in sills and wheel arches.
Preventative Maintenance:
Regular fluid and filter changes, diligent rust inspection and treatment, electrical connector cleaning and dielectric grease application.
Brand Focus:
Luxury, performance, and sophisticated engineering.
Platform:
XJ40 platform (introduced 1986)
Key Updates For 1991:
Introduction of the 4.0L AJ6 engine as a primary option, subtle styling refinements.
Production Period:
1986-1994
Manufacturing Location:
Coventry, England
