🏷️ Basic Information Identification Make: Jaguar Model: Vanden Plas Year: 1990 Trim Level: Vanden Plas Generation Generation Designation: XJ40 (Second Generation) Codes Chassis Code: XJ40 👋 Introduction Market Position Market Position: Premium luxury sedan, positioned as a high-end offering within the Jaguar XJ range, emphasizing comfort, refinement, and exclusivity. Competitive Analysis Competitive Analysis: Competed with other luxury sedans of the era such as the Mercedes-Benz S-Class, BMW 7 Series, and Cadillac Fleetwood. The Vanden Plas offered a distinct British luxury character. Key Features Key Features: Extended wheelbase, enhanced interior luxury appointments, refined ride quality, sophisticated styling. Manual Value Proposition Manual Value Proposition: Provides DIY enthusiasts and professional mechanics with accurate, factory-level repair and maintenance data, enabling cost savings and proper vehicle upkeep for a classic luxury automobile. 📋 Manual Details Coverage Areas Coverage Areas: Engine, transmission, drivetrain, chassis, suspension, steering, brakes, electrical system, climate control, bodywork, interior. Page Count Page Count: Digital (Extensive Content, equivalent to several thousand printed pages) Manual Type Manual Type: Service and Repair Manual Software Language Language: English Format Format: Online/Digital Access (Web Browser Compatible) 📖 Manual Coverage Systems Covered Systems Covered: Engine Mechanical (4.0L AJ6), Engine Management (EFI), Fuel System, Cooling System, Ignition System, Exhaust System, Automatic Transmission (ZF 4HP22), Driveshafts, Differentials, Front Suspension (Independent), Rear Suspension (Independent, trailing arm), Steering System (Hydraulic Power), Brake System (ABS), Electrical System (Wiring Diagrams, Component Locations), Climate Control (Air Conditioning), Body & Chassis, Interior Trim, Diagnostic Procedures. Procedures Included Procedures Included: Scheduled Maintenance, Routine Inspections, Troubleshooting Guides, Diagnostic Procedures, Component Removal and Installation, Engine Overhaul, Transmission Service and Repair, Brake System Service, Suspension and Steering Alignment, Electrical System Diagnosis, HVAC System Repair, Body Panel Repair and Replacement, Interior Component Repair. Technical Depth Technical Depth: Comprehensive: Covers everything from basic fluid checks and maintenance schedules to in-depth engine and transmission rebuilds, complex electrical diagnostics, and bodywork repair. Includes factory-level detail. 📊 Manual Specifications File Format Access Method: Web-based platform accessible via standard internet browser. Print Quality Print Quality: N/A (Digital Format) Binding Type Binding Type: N/A (Digital Format) Paper Type Paper Type: N/A (Digital Format) Licensing Licensing: Officially Licensed, OE (Original Equipment) derived information. Access Duration Access Duration: 1 Year (with discounts for extended access available). Device Compatibility Device Compatibility: Compatible with PC, Laptop, Smartphone, and Tablet. ⚙️ Engine Specifications Primary Engine Engine Code: AJ6 Engine Type: Inline 6-Cylinder, DOHC Displacement: 3.980 cc (4.0 Liters) Bore X Stroke: 94.0 mm x 96.0 mm Compression Ratio: 9.5:1 Performance Horsepower: Approx. 221 hp @ 4,800 rpm Torque: Approx. 277 lb-ft @ 3,750 rpm Fuel System Fuel Delivery: Bosch L-Jetronic Electronic Fuel Injection (EFI) Fuel Type: Unleaded Premium Gasoline (91-93 Octane) Ignition System Ignition System: Electronic Ignition with Distributor and Coil Cooling System Coolant Type: Ethylene Glycol based (Jaguar recommends specific OAT or HOAT for modern replacements, check manual for original spec) Oil Specifications Engine Oil Viscosity: SAE 10W-30 or 10W-40 (API SG or higher) Engine Oil Capacity: Approx. 6.2 Liters (6.6 US Quarts) with filter change 🔧 Transmission Standard Transmission Type: ZF 4HP22 4-Speed Automatic Optional Optional Transmission: Manual transmission was not typically offered on Vanden Plas models of this era. Features Transmission Features: Electronic control, sport/economy modes (depending on specific calibration). Fluid Specifications Transmission Fluid Type: Dexron III / Mercon (Check manual for precise OE recommendation or approved equivalent) Transmission Fluid Capacity: Approx. 3.5 - 4.0 Liters (Dry fill, refer to manual for accurate capacity) 📐 Dimensions Exterior Wheelbase: Approximately 2,959 mm (116.5 inches) Overall Length: Approximately 4,965 mm (195.5 inches) Overall Width: Approximately 1,795 mm (70.7 inches) Overall Height: Approximately 1,360 mm (53.5 inches) Weights Curb Weight: Approximately 1,750 kg (3,858 lbs) Gross Vehicle Weight Rating: Not specified, refer to VIN plate. Wheel Tire Wheel Bolt Pattern: 5 x 120.65 mm (often referred to as 5 x 4.75 inches) Wheel Size: Typically 15-inch or 16-inch alloy wheels. Tire Size Front: Typically 205/70VR15 or 205/60VR16 Tire Size Rear: Typically 205/70VR15 or 205/60VR16 🛡️ Safety Features Ratings Safety Ratings: NHTSA and IIHS ratings from this era are not directly comparable to modern standards. Focus is on passive safety features of the time. Active Features Active Safety Features: Anti-lock Braking System (ABS). Passive Features Passive Safety Features: Frontal airbags (driver and passenger), crumple zones, safety-designed cabin structure, seatbelt pretensioners. 💡 Technology Features Infotainment Infotainment System: Period-appropriate premium audio system (often Jaguar branded or equivalent), cassette player, optional CD player. Analog climate controls. Driver Assistance Driver Assistance Features: Cruise control, ABS. Connectivity Connectivity Features: N/A (No modern connectivity features like Bluetooth or USB). Lighting Headlight Type: Halogen sealed beam or composite headlights. 🔧 Maintenance Service Intervals Oil Change Interval: Typically every 3,000-5,000 miles or 6 months, depending on driving conditions. Refer to manual for exact Jaguar recommendation for 1990. Transmission Service Interval: Check fluid and filter every 24,000 miles or 24 months. Consider...