2004-2005 Jaguar XJ Technical Guide Service Manual (378 p.)
Jaguar XJ Series — air suspension, adaptive damping, dual-stage air bags, xenon headlamps, and 6-speed automatic transmission. PN JJM 18 15 21/40
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Sample pages from the 2004-2005 Jaguar XJ Technical Guide Service Manual (378 p.) manual
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Models Covered & Key Technical Specifications
Jaguar XJ (2004–2005) (JJM 18 15 21/40) — 2004–2005 Technical Briefing Blueprint | XJ Series Library.
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Authorized Speed Rating: 3.0L V6 engine displacement reaches 2,967 cc (181.2 cu in) is set to deliver optimal volumetric efficiency Sequences.
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Calibrated Output Density: For superior driving dynamics, 300 hp at 6,000 rpm is designed for the AJ-V8 4.2-liter normally aspirated engine Baseline.
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Critical Assembly Torques: The final drive unit pinion shaft provides 310 N·m (229 lb-ft) at 4,100 rpm — represents peak torque output Threshold.
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Operational Travel Rate: Air suspension nominal operating pressure establishes 15 bar as the system's controlled threshold, with relief activation at 17.5 bar Requirements.
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Specific Net Mass: Fuel tank capacity reaches 85 liters (18.7 US gal) for normally aspirated vehicles, with supercharged variants holding 84.5 liters (18.6 US gal) Mapping.
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Maximum Adjustment Range: Vehicle turning circle achieves 38' 5" (11.7 m) standard wheelbase configuration, extending to 39' 6" (12.04 m) on long wheelbase models Configuration.
Professional Workshop Service Manual & Technical Specifications
Multi-System Shop Technical Manual: 2004-2005 Jaguar XJ Service Documentation
Serial-Range: Jaguar XJ (2004–2005) precision diagnostics // Technical-Scope: Powertrain and suspension systems / Electronic control architecture // Serial-Range: Comprehensive factory reference covering 378 pages of integrated vehicle systems.
| Identifier | Diagnostic-Logic | Architecture |
|---|---|---|
| Engine Systems | V6 3.0L AJ and V8 4.2L/3.5L configurations with continuous variable valve timing | Documented: displacement, compression ratios, and performance specifications |
| Chassis Control | Air suspension with adaptive damping and dynamic stability management | Documented: operating modes, pressure parameters, and response strategies |
| Powertrain Integration | Six-speed automatic transmission with adaptive shift strategy and electronic controls | Documented: gear ratios, torque converter function, and control algorithms |
Integrated service sections encompass engine architecture and transmission systems, incorporating suspension and electrical components, documenting chassis dynamics, and addressing climate control functionality.
Steering component information is provided for the Servotronic system including variable-assisted power steering curves and columnassembly details. Inspection guidelines are provided for the air suspension height sensors, solenoid valve operation, and reservoir pressure management. Alignment specifications are included for the front and rear double-wishbone suspension geometry, including control arm positioning and ride-height calibration. Reference data is included for the V6 and V8 engine families, covering intake manifold tuning strategies and fuel injection architecture. This manual covers the complete technical scope of the 2004-2005 Jaguar XJ, encompassing all major subsystems from the advanced four-corner air suspension to the integrated telematics and entertainment platforms.
The document provides comprehensive technical framework for the body-integrated aluminum construction, detailing the lightweight monocoque structure approximately 40% lighter than equivalent steel designs. The climate control system documentation includes the 2-zone and optional 4-zone configurations with independent temperature regulation, variable displacement compressor operation, and thermal management strategies. Electronic restraint systems are fully documented with advanced crash sensing, occupancy detection via ultrasonic technology, and multi-stage air bag deployment logic mapped to occupant position and seat occupancy scenarios.
The manual documents torque specifications for the suspension components and drivetrain assemblies to ensure proper load distribution and structural integrity.
Additional technical subsystems detailed include the exterior and interior lighting architectures utilizing xenon high-intensity discharge technology with automatic headlamp leveling, the D2B optical network for entertainment system integration, the navigation system with GPS and gyroscopic directional sensing, and the anti-theft system incorporating passive immobilization and multi-stage unlocking strategies. Comprehensive electrical load management system data is provided to optimize battery charging and feature allocation under varying operating conditions.
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