Vehicle Class:
Full-size Luxury Sedan
Target Audience:
Luxury car buyers seeking refinement, performance, and distinctive British styling.
Key Competitors:
Mercedes-Benz S-Class, BMW 7 Series, Audi V8, Lexus LS, Rolls-Royce Silver Spirit/Spur, Bentley Eight/Mulsanne (during the period).
Design Philosophy:
Classic Jaguar elegance and luxury blended with more modern engineering and safety features compared to its predecessors (XJ series predecessors).
Manual Advantage:
Provides comprehensive, factory-level technical information essential for maintaining and repairing this complex luxury vehicle, enabling owners or independent workshops to perform tasks beyond basic servicing.
Lifetime Access:
Offers enduring value with no expiry or renewal fees, ensuring continued access to critical repair data throughout the vehicle's lifespan.
Primary Coverage:
Full Service, Repair, and Workshop Procedures
Regions Covered:
Global (based on factory specifications applicable across markets)
Estimated Pages:
Hundreds (specific count not provided, but described as comprehensive)
Type:
Factory Service Repair Workshop Manual
Language:
English (implied by product description and typical factory manuals)
Digital Format:
PDF (specified as downloadable to computer, tablet, or smartphone)
File Type Compatibility:
Windows & MAC
Usage License:
Lifetime use, no expiry, no renewal fees, usable on multiple devices
Powertrain:
Engine (3.2L, 3.6L, 4.0L), Transmission (Automatic, manual options may exist but not explicitly stated for all variants in this range), Fuel System, Exhaust System
Chassis:
Suspension (Front and Rear), Steering System, Brakes (Hydraulic and Parking), Wheels and Tires
Electrical:
Engine Management Systems (ECU), Ignition System, Lighting System (Headlights, Taillights, Interior), Instrumentation, Power Accessories (Windows, Locks, Seats), Audio System Wiring, Climate Control Electricals
Body:
Body Panels, Doors, Hood, Trunk, Glass, Interior Trim, Seals
Climate Control:
HVAC System (Heating, Ventilation, Air Conditioning)
Diagnostics:
Troubleshooting Guides, Fault Code Interpretation (where applicable for the era)
Routine Maintenance:
Oil Changes, Filter Replacements, Spark Plug Replacement, Fluid Checks and Top-offs, Belt Inspections and Adjustments
Mechanical Repairs:
Engine Rebuilds (major and minor), Transmission Overhauls, Suspension Component Replacement, Brake Caliper and Disc Servicing, Fuel Pump Replacement, Cooling System Servicing
Electrical Repairs:
Wiring Harness Repair, Sensor Replacement, Module Diagnosis and Replacement, Component Testing
Bodywork Procedures:
Panel Alignment, Dent Repair Basics, Trim Installation and Removal
Troubleshooting:
Systematic Diagnosis of Common and Uncommon Problems, Symptom-Based Troubleshooting Guides
Depth:
Professional Level (suitable for mechanics and advanced DIYers), covering everything from routine maintenance to complete engine and transmission overhauls.
Diagnostic Tools:
References potential diagnostic tools and procedures relevant to the XJ40 era.
Diagrams And Photos:
Detailed Exploded Diagrams, Step-by-Step Photos, Wiring Schematics
Print Capability:
Printable pages (single or entire manual)
Print Resolution:
High-resolution for clarity of diagrams and text (implied by 'detailed photos & diagrams')
Digital Binding:
N/A (Digital format)
Digital Paper Simulation:
N/A (Digital format)
Text Searchability:
Likely searchable text within the PDF (common for professionally produced manuals)
Hyperlinks:
Potential for internal hyperlinks within the PDF for cross-referencing (common feature)
Engine Type:
AJ6 Inline-6 (24-valve DOHC)
Engine Displacement 3.2:
3.2 Liters (3239 cc)
Engine Displacement 3.6:
3.6 Liters (3590 cc)
Engine Displacement 4.0:
4.0 Liters (3980 cc)
Horsepower 3.2:
Approximately 200-220 hp (varies by market and specific tuning)
Horsepower 3.6:
Approximately 215-230 hp
Horsepower 4.0:
Approximately 240-250 hp
Torque 3.2:
Approx. 230-240 lb-ft
Torque 3.6:
Approx. 240-250 lb-ft
Torque 4.0:
Approx. 270-280 lb-ft
Injection Type:
Lucas/GEMS Multi-Point Fuel Injection (MPI)
Fuel Type:
Unleaded Petrol (Octane rating as specified in manual, likely 95 RON or higher)
ECU Type:
Early models may use Lucas, later models utilize GEMS ECUs. Manual will detail specific systems.
Valve Train:
Double Overhead Camshafts (DOHC), 4 valves per cylinder.
Transmission Type:
ZF 4HP22 4-Speed Automatic Transmission
Manual Transmission Availability:
Manual transmissions were less common in later XJ models for the North American market but were available in some international markets. The manual would detail any applicable manual gearboxes.
Automatic Features:
Electronic control (in later versions), Comfort/Sport modes, Torque Converter Lock-up.
Automatic Transmission Fluid:
Dexron-III or equivalent (refer to manual for exact specification and part number, e.g., Jaguar JLM 10266)
Wheelbase:
Approx. 113.1 inches (2873 mm)
Length:
Approx. 197.1 inches (5007 mm)
Width:
Approx. 70.1 inches (1781 mm)
Height:
Approx. 53.5 inches (1359 mm)
Curb Weight:
Approx. 3800-4000 lbs (1724-1814 kg), varying with engine and equipment.
Gross Vehicle Weight Rating:
Refer to vehicle's compliance plate or manual for exact GVWR.
Trunk Capacity:
Adequate for its class, but specifics require manual reference.
Crash Test Data:
No official NHTSA/Euro NCAP ratings are readily available for this specific model year range in the same way modern cars are tested. Safety was primarily focused on passive restraints and structural integrity according to 1980s/90s standards.
ABS:
Anti-lock Braking System (ABS) was standard or optional depending on the year and market. Manual will detail its operation and servicing.
Traction Control:
Traction control (ASR) became available on later models, particularly with the 4.0L engine. Manual will cover this system.
Airbags:
Driver's airbag became standard during the XJ40 production run. Passenger airbags were not standard for most of this period. Manual will detail airbag system components and safety precautions.
Seatbelts:
Pre-tensioned front seatbelts. Manual will cover adjustments and servicing.
Chassis Design:
Monocoque body construction with integrated safety cage structure, designed for crumple zones.
Audio System:
Factory premium sound systems, often with cassette and radio. Upgrades and replacements are common. Manual will cover original wiring and component locations.
Cruise Control:
Standard feature on most models, controlled via steering column stalks. Manual details operation and troubleshooting.
Antennae System:
Power-operated antenna, often integrated into the C-pillar or rear quarter panel. Manual covers its electrical connections.
Power Accessories:
Power windows, door locks, mirrors, and often power-adjustable seats were standard or widely available. Manual covers the electrical systems for these.
Climate Control System:
Automatic climate control was a hallmark of the XJ, managing temperature and airflow. Manual provides diagnostics for HVAC and its electronic controls.
Oil Change Interval:
Typically every 6,000-10,000 miles or 12 months, whichever comes first (refer to manual for exact recommendation based on driving conditions).
Major Service Intervals:
Examples include timing chain inspection/replacement, coolant flush, brake fluid flush at specific mileage or time intervals (e.g., 30,000 miles, 2-3 years).
Engine Oil Specification:
API SG/SH or higher, SAE 10W-40 or 10W-50 recommended for most climates (e.g., Castrol GTX or equivalent). Manual will list exact viscosity and Jaguar part numbers.
Coolant Specification:
Ethylene Glycol based coolant, typically a 50/50 mix with distilled water. Jaguar specific coolant (e.g., JLM 10032) recommended. Manual will detail type and capacity.
Brake Fluid Specification:
DOT 3 or DOT 4 (check manual for exact spec, often DOT 4). Always use fresh, sealed fluid.
Power Steering Fluid:
ATF Dexron-II/III or specific Jaguar fluid (e.g., JLM 10032).
Common Wear Items:
Suspension bushings (especially rear trailing arm), cooling system components (radiator, hoses, thermostat), head gasket on early AJ6 engines, fuel pump, ABS sensor failures, idle control valve issues.
Electrical Gremlins:
Characteristic of luxury cars of this era, potential issues with wiring harnesses, relays, and modules. Manual's diagnostic section is crucial.
Key Preventative Tasks:
Regularly checking fluid levels, inspecting coolant hoses for swelling/cracking, servicing the ABS system, ensuring proper engine cooling system function.
Jaguar Legacy:
Jaguar has a long-standing reputation for luxury, performance, and elegant design, dating back to Sir William Lyons's founding principles. The XJ line has always been the flagship sedan.
Xj40 Introduction:
The XJ40 replaced the previous XJ-S (not the XJ-S, but the Series III XJ). It was a significant redesign, moving to a more modern unibody construction and incorporating advancements in electronics and comfort. It aimed to compete directly with the best German and American luxury sedans.
Key Updates In Range:
The 3.2L engine was introduced later in the XJ40's life, often as a more accessible option. The 4.0L engine became the dominant and most powerful option. The facelifted models (post-1992) received significant updates, including revised styling and the introduction of the V12 engine (though not covered in this specific manual).
Production Period:
XJ40 production ran from 1986 to 1994. This manual specifically covers the later years of this generation, including early 4.0L and subsequent refinements.
Manufacturing Location:
Coventry, England (Jaguar's traditional manufacturing base).
General Reputation:
While specific awards for the 1986-1994 XJ40 models might not be as widely publicized as modern cars, the XJ series has consistently been recognized for its blend of luxury, comfort, and driving dynamics.
Manual Industry Recognition:
The manual's description as 'professional,' 'detailed,' and 'factory-level' indicates it meets industry standards for repair documentation, making it a valuable tool.
