🏷️ Basic Information Identification Make: Jaguar Model: XJ Series (XJ6, XJ12, Sovereign) Model Variant: XJS, Daimler Double Six Model Years Covered: 1986, 1987, 1988, 1989, 1990, 1991, 1992, 1993, 1994 Codes Chassis Codes: XJ40 (XJ6/Sovereign), XJ-S (XJS/Sovereign), XJ12/Daimler Double Six 👋 Introduction Market Position Segment: Luxury Grand Tourer and Executive Sedan Target Audience: Owners seeking to perform their own maintenance and repairs on Jaguar XJ, XJS, and Daimler vehicles. Competitive Analysis Competitors: BMW 7 Series, Mercedes-Benz S-Class, Rolls-Royce Silver Spirit/Spirit II, Bentley Eight/Mulsanne during the covered period. Key Features Value Proposition: Empowers owners to maintain and repair their classic luxury vehicles, saving significant costs associated with dealership servicing. Provides in-depth technical knowledge. Ease Of Use: Step-by-step instructions and illustrations designed to make complex procedures manageable for DIY mechanics. 📋 Manual Details Coverage Areas Primary Coverage: Complete Workshop Service Repair Secondary Coverage: Maintenance, Troubleshooting, Diagnostics, Component Repair, Reassembly, Electrical Systems, Bodywork, Wiring Diagrams Page Count Estimated Page Count: Varies by specific model/year, typically extensive (800-1500+ pages for a complete set) Manual Type Type: Workshop Service Repair Manual Language Language: English Format Format: Downloadable Digital Format (PDF) 📖 Manual Coverage Systems Covered Powertrain: Engine (AJ6, AJ16 I6, V12 HE), Fuel System, Ignition System, Exhaust System Transmission: Automatic Transmissions (e.g., ZF 4HP22, GM 4L80E), Manual Transmissions (less common for these models) Chassis: Suspension (Independent Rear Suspension), Steering, Brakes (ABS), Wheels and Tires Electrical: Engine Management Systems, Lighting, Instrumentation, Audio, Climate Control, Power Accessories, Wiring Harnesses, Diagnostic Connectors Bodywork: Exterior Panels, Interior Trim, Seating, Glass, Doors, Locks, Body Sealing Procedures Included Routine Maintenance: Oil Changes, Filter Replacements, Fluid Checks, Spark Plug Replacement, Belt Inspections Major Repairs: Engine Overhaul, Transmission Rebuild, Suspension Component Replacement, Brake System Overhaul, Electrical Component Diagnosis and Repair Diagnostics: Troubleshooting guides, fault code interpretation (OBD-I era), diagnostic procedures for all major systems Technical Data: Torque specifications, clearances, fluid capacities, electrical schematics, wiring diagrams Technical Depth Depth: Comprehensive, covering everything from basic preventative maintenance to complete engine and transmission rebuilds, including detailed diagnostic procedures. 📊 Manual Specifications File Format File Format: PDF Print Quality Print Quality: High-resolution scans of original factory manuals, ensuring clarity of text and diagrams. Printable on standard paper sizes. Binding Type Binding Type: N/A (Digital Download) Paper Type Paper Type: N/A (Digital Download) Searchability Text Search: Likely OCR'd for searchable text, facilitating quick access to specific information. ⚙️ Engine Specifications Primary Engine Xj6 Sovereign Engine: 4.0L AJ6 Inline-6 (Dual Overhead Camshafts, Electronic Fuel Injection) Xj12 Sovereign Engine: 5.3L V12 HE (High Efficiency) (Dual Overhead Camshafts, Electronic Fuel Injection) Xjs Sovereign Engine: 4.0L AJ6 Inline-6, 5.3L V12 HE (depending on year and trim) Daimler Double Six Engine: 5.3L V12 HE (Dual Overhead Camshafts, Electronic Fuel Injection) Performance Xj6 Power Output: Approx. 225-245 hp (depending on year/market) Xj12 Power Output: Approx. 260-290 hp (depending on year/market) Fuel System Fuel Delivery: Lucas/Bosch Electronic Fuel Injection (EFI) with multi-point injection. Ignition System Ignition Type: Electronic Ignition (Distributorless in later AJ6 models) Engine Management ECU Details: Jaguar Electronic Engine Management (JEEM) systems for AJ6 and V12 engines. Diagnostic procedures for these ECUs will be detailed. 🔧 Transmission Standard Xj6 Standard Transmission: 4-Speed Automatic (ZF 4HP22) Xj12 Standard Transmission: 3-Speed or 4-Speed Automatic (GM THM400 or ZF 4HP22, depending on year) Optional Xjs Transmission Options: 4-Speed Automatic (ZF 4HP22), potentially 4-speed manual (Getrag) on earlier XJ-S models. Features Automatic Features: Electronically controlled or hydraulic control systems, including torque converter lock-up for improved efficiency. 📐 Dimensions Exterior Wheelbase: XJ40: 113 inches; XJS: 102 inches Overall Length: XJ40: Approx. 197-200 inches; XJS: Approx. 193-196 inches Weights Curb Weight: XJ6/Sovereign: Approx. 3800-4100 lbs; XJ12/Daimler: Approx. 4200-4400 lbs; XJS: Approx. 3800-4200 lbs 🛡️ Safety Features Ratings Crash Test Data: Limited official crash test data readily available for these specific years from modern agencies. Rely on structural integrity and passive safety features typical of Jaguar luxury vehicles of the era. Active Features Braking System: Anti-lock Braking System (ABS) standard on most models, typically Lucas Girling or Bosch ABS. Traction Control: Traction Control System (TCS) available on later models, particularly V12 variants. Passive Features Airbags: Driver's side airbag introduced in later XJ40 models (approx. 1990 onwards). Passenger airbags not standard on most covered models. Seatbelts: 3-point inertia reel seatbelts with pre-tensioners (on later models). 💡 Technology Features Infotainment Audio System: Premium audio systems from manufacturers like Clarion or Bose, often with cassette tape players and multi-speaker configurations. CD changers were optional on later models. Driver Assistance Cruise Control: Electronic cruise control system standard on most models. Connectivity Diagnostic Ports: OBD-I style diagnostic connectors for engine management systems. Specific Jaguar proprietary diagnostic tools may have been used. Climate Control System Type: Automatic climate control (ECC - Electronic Climate Control) with individual temperature and fan speed settings, often incorporating cabin air filtration. 🔧 Maintenance Service Intervals Oil Change Interval: Typically every 5,000-7,500...