Target Audience:
Jaguar XJ6 owners, independent mechanics, automotive enthusiasts undertaking DIY repairs
Key Competitors:
Mercedes-Benz W126 S-Class, BMW E23 7 Series, Rolls-Royce Silver Spirit
Unique Selling Points:
Focus on DIY repair, cost savings, in-depth vehicle knowledge, comprehensive coverage of all major systems
Convenience:
Instant download, anytime/anywhere repair capability on digital devices
Powertrain:
Engine service/repair, transmission service/repair, fuel injection/fuel system, cooling system, emission system, engine control system
Chassis:
Brake system, suspension, steering, axle components
Electrical:
Electrical system, wiring diagrams
Body:
Chassis/bodywork, restraint system
General:
General maintenance, periodic lubrication, troubleshooting
Maintenance:
Routine servicing, fluid changes, filter replacements, lubrication schedules
Repair:
Disassembly, reassembly, component replacement, overhaul procedures
Troubleshooting:
Diagnostic procedures, fault finding, symptom analysis
Refurbishment:
Renovation, mending, and fixing advice for various systems
Depth:
Detailed, covering basic maintenance to complex mechanical and electrical repairs, including diagnostics and schematics
Engine Type:
Naturally Aspirated Inline-6 Cylinder (XK engine family evolution)
Displacement:
3.6 Liters (3590 cc)
Bore X Stroke:
91.4 mm x 89.0 mm
Compression Ratio:
8.5:1 or 9.0:1 (depending on market/variant)
Horsepower:
Approximately 220-225 bhp @ 5000-5250 rpm
Torque:
Approximately 270-275 lb-ft @ 3500-4000 rpm
Fuel Delivery:
Electronic Fuel Injection (EFI), often Lucas-GEMS or Bosch variants
Fuel Type:
Unleaded Premium Gasoline (91 Octane or higher recommended)
Coolant Type:
Ethylene Glycol based antifreeze with corrosion inhibitors
Capacity:
Approx. 11.5 liters (12.2 US quarts)
Catalytic Converter:
Equipped with a catalytic converter for emissions control
ECU:
Engine Control Unit (ECU) for managing fuel injection and ignition timing
Type:
4-speed Automatic (e.g., ZF 4HP22)
Features:
Lock-up torque converter, electronic or hydraulic control
Type:
5-speed Manual (less common in North American market)
Automatic Transmission Fluid:
Dexron II or equivalent specification
Manual Transmission Fluid:
API GL-4, SAE 75W-90 or 80W-90 gear oil
Length:
Approx. 4965 mm (195.5 inches)
Width:
Approx. 1790 mm (70.5 inches)
Height:
Approx. 1360 mm (53.5 inches)
Wheelbase:
Approx. 2870 mm (113 inches)
Curb Weight:
Approx. 1700-1800 kg (3750-3970 lbs)
Gross Vehicle Weight Rating:
Approx. 2200 kg (4850 lbs)
Crash Test Data:
Limited standardized crash test data for this era; focus on inherent structural integrity of Jaguar's design
ABS:
Anti-lock Braking System (ABS) typically standard or optional on higher trims
Traction Control:
Not typically available on 1986 models
Airbags:
Driver's airbag optional or standard on later XJ40 variants; likely not standard on 1986 models
Seatbelts:
Three-point seatbelts in front and rear
Audio System:
Factory fitted radio cassette player, often with amplifier
Climate Control:
Automatic climate control system with A/C and heating
Cruise Control:
Standard or optional cruise control system
Connectivity Features:
Limited by modern standards; primarily focused on vehicle mechanical and electrical systems
Oil Change:
Every 6,000 miles or 12 months, whichever comes first
Air Filter Replacement:
Every 12,000 miles or 24 months
Spark Plug Replacement:
Every 24,000 miles (check manual for specific plug type and gap)
Transmission Fluid Service:
Every 24,000-36,000 miles (check for filter replacement as well)
Engine Oil Type:
SAE 10W-40 or 20W-50, API SG or higher specification (check manual for specific recommendations)
Engine Oil Capacity:
Approx. 5.2 liters (5.5 US quarts) with filter change
Brake Fluid Type:
DOT 3 or DOT 4, typically glycol-based
Power Steering Fluid Type:
Hydraulic fluid, typically ATF Dexron II or equivalent, or specific Jaguar power steering fluid
Coolant Specification:
Ethylene Glycol based antifreeze, typically a 50/50 mix with distilled water
Electrical System:
Lucas electrical components, harness corrosion, relay failures, instrument cluster issues
Cooling System:
Water pump leaks, radiator failures, hose degradation, thermostat issues
Suspension:
Front ball joint wear, rear self-leveling suspension issues (if equipped), bush degradation
Fuel System:
Fuel pump failures, injector clogging, fuel pressure regulator issues
Bodywork:
Rust in wheel arches, door sills, boot lid, and A-pillars
Legacy:
Jaguar's long-standing reputation for luxury, performance, and distinctive styling, originating from Sir William Lyons
Predecessor:
Jaguar XJ (Series III)
Platform:
Introduced the new XJ40 platform, a significant departure from previous XJ generations, featuring a more modern, monocoque construction.
Design Philosophy:
Aimed at blending classic Jaguar elegance with modern engineering and improved build quality, addressing historical reliability concerns.
Manufacturing Location:
Coventry, England
Production Years For Model:
1986 - 1994 (XJ40 generation)
Automotive Press Reviews:
Critically acclaimed for its ride comfort, handling balance, and refined luxury, though early models faced criticism for build quality compared to German rivals.
Industry Standards:
Designed to meet relevant safety and emissions standards for the North American and European markets of the time.
