🏷️ Basic Information Identification Make: Jaguar Model: Vanden Plas Year: 2004 Generation Generation: X308 (facelift) Codes Chassis Code: XJ12 (X300 platform basis) 👋 Introduction Market Position Segment: Full-size luxury sedan Competitive Analysis Competitors: BMW 7 Series, Mercedes-Benz S-Class, Lexus LS, Audi A8 Key Features Distinguishing Features: Renowned Jaguar styling, refined ride quality, premium interior appointments, powerful V8 engine options Software Benefits Convenience: Instant online access, searchable content, compatible with various devices 📋 Manual Details Coverage Areas Manual Scope: Comprehensive service and repair Page Count Estimated Pages: Extensive (specific count not provided but implied to be complete factory data) Manual Type Type: Software-based Service and Repair Manual Language Language: English Format Format: Online Access (Web Browser Based) 📖 Manual Coverage Systems Covered Powertrain: Engine mechanical, engine management, fuel system, cooling system, exhaust system, transmission (automatic) Chassis: Front suspension, rear suspension, steering system, brake system (including ABS), wheels and tires Electrical: Body electrical systems, lighting, instrumentation, HVAC electrical, power accessories, engine control module (ECM) wiring, chassis control module (CCM) wiring, audio system wiring Body: Body structure, exterior panels, interior trim, glass, doors, hood, trunk lid Climate Control: HVAC system diagnosis and repair, including refrigerant systems, blower motors, climate control modules. Body Controls: Power windows, power locks, remote keyless entry, power seats, heated seats, memory seats, sunroof operation. Procedures Included Maintenance: Scheduled maintenance, fluid changes (oil, coolant, brake fluid, transmission fluid), filter replacements (oil, air, fuel, cabin), spark plug replacement, belt inspection/replacement Diagnostics: Troubleshooting guides, symptom-based diagnostics, diagnostic trouble codes (DTCs), electrical system diagnostics, engine performance diagnostics Repair: Engine rebuild procedures, transmission overhaul, brake component replacement (pads, rotors, calipers), suspension component replacement (shocks, struts, bushings), steering system repair, electrical component replacement, HVAC system repair Technical Specifications: Torque specifications, clearances, fluid capacities, wiring diagrams, diagnostic procedures, component testing Troubleshooting Electrical: Detailed wiring diagrams, component location charts, and diagnostic flowcharts for electrical faults. Engine Management: ECM/PCM component identification, sensor testing, actuator testing, fuel injector testing, ignition coil diagnosis. Technical Depth Depth: Factory-level detail, suitable for professional technicians and experienced DIY enthusiasts 📊 Manual Specifications File Format Access Method: Web browser interface, requires internet connection Print Quality Digital Quality: High-resolution, clear diagrams and text Binding Type Binding: N/A (digital format) Paper Type Paper: N/A (digital format) ⚙️ Engine Specifications Primary Engine Engine Type: V8 (AJ-V8) Engine Displacement: 4.0L (3961 cc) Performance Horsepower: 245 hp @ 5000 rpm (naturally aspirated) Torque: 370 Nm (273 lb-ft) @ 4250 rpm (naturally aspirated) Fuel System Fuel Delivery: Sequential Multi-Port Fuel Injection (MPI) Engine Codes Engine Variant: AJ27 (for 4.0L) Engine Features Block Material: Aluminum Alloy Cylinder Head Material: Aluminum Alloy Valve Train: Dual Overhead Camshafts (DOHC), 4 valves per cylinder 🔧 Transmission Standard Transmission Type: 5-speed automatic Transmission Model: ZF 5HP24 Features Transmission Features: Jaguar Sequential Shift (J-Shift) mode Fluid Specifications Transmission Fluid Type: Mercon V or equivalent (e.g., ZF Lifeguardfluid 5) 📐 Dimensions Exterior Length: 5029 mm (198.0 in) Width: 1795 mm (70.7 in) Height: 1380 mm (54.3 in) Wheelbase: 2946 mm (116.0 in) Weights Curb Weight: Approx. 1830 kg (4034 lbs) Gross Vehicle Weight Rating: Not explicitly specified, but substantial for a luxury sedan 🛡️ Safety Features Ratings NHTSA Front Impact: Not officially rated for this specific year/model in many markets, but generally considered safe for its era. Active Features ABS: Standard Anti-lock Braking System (ABS) Traction Control: Standard Traction Control System (TCS) Passive Features Airbags: Front airbags, side airbags Seatbelts: Pretensioning seatbelts with load limiters 💡 Technology Features Infotainment Audio System: Premium audio system, often with CD player, cassette deck (early models), and optional premium sound by Alpine or Harman Kardon. Navigation: Optional touchscreen navigation system. Driver Assistance Cruise Control: Standard Adaptive Cruise Control (ACC) on some higher trims or optional. Connectivity Phone Integration: Optional integrated cellular telephone system. 🔧 Maintenance Service Intervals Oil Change Interval: Typically 7,500 miles or 12 months, whichever comes first. Coolant Change Interval: Initial change at 5 years, then every 2 years thereafter (using Jaguar-specific coolant). Fluid Specifications Engine Oil Type: SAE 5W-30 Synthetic (meeting Jaguar specification JLM.S.380 or equivalent API SJ/SL). Coolant Type: Ethylene Glycol based, Jaguar Approved Long Life Coolant (typically green or pink depending on formulation). Brake Fluid Type: DOT 4 (high-performance). Known Issues Common Problems: Timing chain tensioner wear (especially on early 4.0L AJ-V8), coolant hose degradation, air suspension issues (if equipped), intermittent electrical gremlins, sun visor failure, minor body corrosion in certain areas. Filter Part Numbers Oil Filter: Example: Mann-Filter HU821X, Wix WL7234, or Jaguar OEM C2A1504. Air Filter: Example: Mann-Filter C35120/1, Wix WA9418, or Jaguar OEM JLM10535. 📚 Vehicle History Brand Heritage Heritage Focus: Jaguar's long-standing reputation for luxury, performance, and elegant design. Model Evolution Vanden Plas Positioning: The Vanden Plas represented the pinnacle of luxury and comfort within the Jaguar XJ line. Production Platform Basis: Based on the X308 generation, itself an evolution of the...