Competitors:
BMW 7 Series, Mercedes-Benz S-Class, Audi V8, Rolls-Royce Silver Spirit, Bentley Eight
Design Philosophy:
Elegant styling, comfortable ride, refined performance, representing a significant departure from previous Jaguar designs with a more modern, squared-off aesthetic.
Target Audience:
Discerning buyers seeking a luxurious and sophisticated European sedan.
Main Coverage:
Comprehensive service, repair, and maintenance for the 1987 Jaguar XJ6
Estimated Pages:
Varies by specific factory release, typically 500-800 pages for comprehensive factory service manuals.
Type:
Repair Service Manual / Workshop Manual
Powertrain:
Engine (AJ6 3.6L), Fuel System, Ignition System, Cooling System, Exhaust System
Drivetrain:
Automatic Transmission (e.g., ZF 4HP22), Driveshaft, Rear Axle
Chassis:
Suspension (Front and Rear), Steering System, Brakes (Front and Rear, ABS)
Electrical:
Wiring Diagrams, Lighting, Instruments, HVAC Controls, Power Accessories, Engine Management Electronics, Body Control Modules
Body:
Body Construction, Sheet Metal Repair, Doors, Windows, Trim, Bumpers, Paint and Corrosion Protection
Maintenance:
Scheduled Maintenance, Oil Changes, Filter Replacements, Fluid Checks and Replenishments, Lubrication
Repair:
Component Removal, Disassembly, Reassembly, Repair, and Reinstallation for all major systems
Diagnostics:
Troubleshooting Guides, Symptom-Based Diagnostics, Fault Code Interpretation (where applicable)
Specifications:
Torque Specifications, Clearances, Tolerances, Fluid Capacities, Electrical Resistance Values
Level:
Professional Technician Level, with sufficient detail for advanced DIY mechanics
Configuration:
Inline 6-Cylinder
Displacement:
3.6 Liters (3590 cc)
Bore X Stroke:
94 mm x 87 mm
Compression Ratio:
9.25:1 (typical for Euro spec)
Horsepower:
Approx. 220-225 bhp @ 5300 rpm (varies by market and emission controls)
Torque:
Approx. 263-270 lb-ft @ 3250 rpm (varies by market and emission controls)
Injection:
Bosch L-Jetronic Fuel Injection
Fuel Type:
Unleaded Gasoline (95 RON or higher recommended)
Type:
Electronic Ignition System (DIS or distributor-based depending on exact market/spec)
Type:
Pressurized Liquid Cooling System
Type:
5-Speed Manual (less common, primarily for specific markets)
Shift Modes:
Sport/Normal modes (typical for ZF 4HP22)
Automatic Transmission Fluid:
Dexron II (or equivalent specification)
Length:
Approx. 4966 mm (195.5 in)
Width:
Approx. 1793 mm (70.6 in)
Height:
Approx. 1372 mm (54.0 in)
Wheelbase:
Approx. 2870 mm (113.0 in)
Curb Weight:
Approx. 1700-1800 kg (3748-3968 lbs), varies by specification
Gross Vehicle Weight Rating:
Typically around 2200 kg (4850 lbs)
Crash Test Results:
No standardized crash test ratings from agencies like NHTSA or Euro NCAP were prevalent for this era of vehicle. Focus on passive safety features.
ABS:
Anti-lock Braking System (ABS) standard on many models, particularly later production 1987 models.
Airbags:
Driver's airbag standard on most 1987 models, passenger airbag introduced later in the XJ40 generation.
Seatbelts:
Three-point seatbelts front and rear.
Rollover Protection:
Reinforced A and B pillars, but no specific rollover protection systems as understood today.
Oil Change:
Every 5,000 miles or 6 months, whichever comes first (typical for the era).
Transmission Fluid:
Check every 12,000 miles, change as per manual recommendations (often 30,000-60,000 miles).
Coolant Flush:
Every 24,000 miles or 24 months.
Engine Oil:
API SG/CD, SAE 20W/50 or 10W/40 depending on climate. Capacity: Approx. 6.5 Liters (with filter).
Coolant:
Ethylene glycol-based antifreeze mixed 50/50 with distilled water. Jaguar part number JLM 1070.
Brake Fluid:
DOT 3 or DOT 4.
Head Gasket:
While the AJ6 is generally robust, head gasket leaks can occur, especially if maintenance is neglected.
Electrical Gremlins:
Older Jaguars are known for electrical issues, including corroded connectors, failing relays, and faulty sensors. Thorough wiring diagrams are crucial.
Suspension Bushings:
Wear in suspension bushings can lead to a less precise feel and premature tire wear.
ABS System:
ABS sensors and control modules can be prone to failure, requiring specialized diagnostic tools.
Legacy:
Jaguar Cars has a long history of producing luxury sports sedans and grand tourers, renowned for their performance and styling.
Predecessor:
Jaguar XJ Series III
Introduction Of Xj40:
The XJ40 generation was introduced in 1986, representing a complete redesign of Jaguar's flagship saloon.
Manufacturing Location:
Coventry, England
Production Period:
XJ40 generation: 1986–1994
