🏷️ Basic Information Identification Make: Infiniti Model: Q45 Generation: 3rd Generation Chassis Code: F50 Series Production Years: 2002-2006 👋 Introduction Market Position Vehicle Segment: Full-size Luxury Sedan Competitive Analysis Competitors: Lexus LS 430, BMW 7 Series, Mercedes-Benz S-Class, Cadillac DTS Key Features Design Philosophy: Elegant, powerful, and technologically advanced luxury vehicle Manual Value Benefit: Inexpensive way to keep vehicle working properly, enables DIY repairs and cost savings 📋 Manual Details Coverage Areas Covered Years: 2002, 2003, 2004, 2005, 2006 Page Count Total Pages: More than 5000 Manual Type Type: Complete Service Repair Manual Language Language: English Format File Format: PDF Delivery Method: Instant Download 📖 Manual Coverage Systems Covered Engine Mechanical: Yes Engine Lubrication: Yes Engine Cooling: Yes Engine Control: Yes Fuel System: Yes Exhaust System: Yes Accelerator Control: Yes Automatic Transmission: Yes Propeller Shaft: Yes Rear Final Drive: Yes Front Axle: Yes Rear Axle: Yes Front Suspension: Yes Rear Suspension: Yes Road Wheels Tires: Yes Suspension Control: Yes Brake System: Yes Parking Brake System: Yes Brake Control: Yes Power Steering: Yes Steering Control: Yes Seat Belts: Yes Srs: Yes Body Lock Security: Yes Glasses Window Mirrors: Yes Roof: Yes Exterior Interior: Yes Instrument Panel: Yes Seats: Yes Automatic Air Conditioner: Yes Starting Charging: Yes Lighting System: Yes Driver Information System: Yes Wiper Washer Horn: Yes Lan System: Yes Audio Visual Navigation Telephone: Yes Auto Cruise Control: Yes Power Supply Ground Circuit Elements: Yes Maintenance: Yes Procedures Included Repair Procedures: Yes Maintenance Procedures: Yes Rebuilding Procedures: Yes Refurbishing Procedures: Yes Restoration Procedures: Yes Diagnostic Procedures: Yes Technical Depth Detail Level: Complete disassembly to detailed procedures Illustrations: Detailed illustrations and diagrams Wiring Schematics: Yes Step By Step Instructions: Yes Target Audience Suitability: Do-it-yourselfer and experienced mechanic 📊 Manual Specifications File Format Compatibility: All Versions of Windows & Mac, Linux OS, iPhone, iPad, Android Requirements: Adobe PDF Reader & WinZip Print Quality Searchability: Searchable Bookmarking: Bookmarked Completeness Guarantee: 100% Complete and Intact, No Missing/Corrupt pages/sections Print Capability: Printable Binding Type Binding: Digital Download (PDF) Paper Type Medium: Digital ⚙️ Engine Specifications Primary Engine Engine Code: VQ35DE Engine Type: 3.5L V6 DOHC 24-Valve Performance Horsepower: Approximately 280-302 hp (varies slightly by year/trim) Torque: Approximately 260-295 lb-ft (varies slightly by year/trim) Fuel System Fuel Delivery: Multi-Point Fuel Injection (MPI) Recommended Fuel: Premium Unleaded Gasoline (91 Octane or higher) 🔧 Transmission Standard Type: 5-Speed Automatic with Manual Shift Mode (Sportshift) Features Transmission Control: Electronically controlled with overdrive 📐 Dimensions Exterior Length: Approximately 199.8 - 200.2 inches Width: Approximately 71.5 inches Height: Approximately 58.3 - 58.9 inches Weights Curb Weight: Approximately 3,800 - 4,000 lbs Wheelbase: Approximately 112.2 inches Track Width Front: Approximately 60.6 inches Track Width Rear: Approximately 60.2 inches 🛡️ Safety Features Ratings NHTSA Front Impact: Not explicitly rated for all model years in this range, but generally considered safe for its class. Active Features ABS: Standard (Anti-lock Braking System) Traction Control: Standard Electronic Brake Force Distribution: Standard Passive Features Airbags: Front, side, and curtain airbags (availability may vary by trim and year) Seat Belts: Pretensioners with load limiters 💡 Technology Features Infotainment Navigation System: Available GPS Navigation System Audio System: Bose premium audio system available Driver Assistance Cruise Control: Standard (possibly adaptive cruise control on higher trims/later years) Parking Sensors: Available Connectivity Keyless Entry: Standard Push Button Start: Standard 🔧 Maintenance Service Intervals Oil Change Interval: Refer to manual (typically 5,000-7,500 miles or 6-12 months) Engine Air Filter: Refer to manual (typically 15,000-30,000 miles) Spark Plugs: Refer to manual (typically 60,000-100,000 miles depending on type) Fluid Specifications Engine Oil: Refer to manual (typically SAE 0W-20 or 5W-30 Synthetic) Transmission Fluid: Refer to manual (e.g., Nissan Matic J or equivalent ATF) Coolant: Refer to manual (typically mixture of antifreeze and distilled water, often Nissan Genuine Super Coolant) Known Issues Common Wear Items: Ignition coils, camshaft position sensors, front suspension components (bushings, ball joints), alternator. Transmission Notes: Some reports of occasional rough shifting or transmission control module issues. 📚 Vehicle History Brand Heritage Infiniti Launch Year: 1989 Model Evolution Q45 Introduction Year: 1990 (1st Generation) F50 Generation Introduction: 2001 (for the 2002 model year) Production Manufacturing Location: Japan 🏆 Awards & Recognition Recognitions Performance Awards: Often praised for its powerful V6 engine and comfortable ride. Ratings Safety Ratings General: Good overall safety profile for its era, but specific ratings should be verified by VIN.