🏷️ Basic Information Identification Make: BMW Model: 745i Year: 2004 Codes Chassis Code: E66 Engine Code Typical: N62B44 👋 Introduction Market Position Segment: Full-size Luxury Sedan Target Audience: Luxury car owners seeking to maintain or repair their 2004 BMW 745i, independent repair shops, BMW enthusiasts. Competitive Analysis Competitors: Mercedes-Benz S-Class (W220), Audi A8 (D3), Lexus LS (XF30), Jaguar XJ (X350). Key Features Vehicle Features: Advanced iDrive infotainment system, sophisticated suspension, powerful V8 engine, luxurious interior appointments, optional xDrive all-wheel drive. Key Features Manual Benefits: Provides official, accurate technical data, covers complex systems often poorly documented in generic manuals, enables cost-effective DIY repairs. 📋 Manual Details Coverage Areas Coverage Scope: Comprehensive Service and Repair Page Count Estimated Pages: 1000+ Manual Type Type: Digital Service Manual Software Language Language: English Format Format: Software (likely PDF or proprietary digital format) 📖 Manual Coverage Systems Covered Engine: All aspects of the N62 V8 engine, including diagnostics, repair, overhaul, timing system, cooling, lubrication, fuel injection, ignition. Transmission: GM 6L45/6L40 automatic transmission, including diagnostics, overhaul, fluid services, electronic controls. Drivetrain: All-wheel drive (xDrive) system, differentials, driveshafts, CV joints. Suspension: Front and rear suspension components, active damping systems (EDC), air suspension, alignment specifications. Brakes: Hydraulic brake system, ABS, DSC (Dynamic Stability Control), brake pad/rotor replacement, brake bleeding procedures, parking brake. Steering: Hydraulic power steering system, steering rack, power steering fluid specifications. Electrical: Complete electrical system, including wiring diagrams, fuse box layouts, lighting, power windows, mirrors, seats, starter, alternator. Body: Body panels, doors, hood, trunk, bumpers, trim, glass, sunroof operation. HVAC: Climate control system, refrigerant R134a, compressor, condenser, evaporator, blower motor, diagnostic procedures. Interior: Interior trim removal and installation, seats, dashboard, headliner, airbags. Infotainment: iDrive system, audio components, navigation system, instrument cluster. Procedures Included Maintenance: Oil change intervals and procedures, filter replacements (oil, air, cabin), spark plug replacement, coolant flush, brake fluid flush. Diagnostics: Troubleshooting guides, diagnostic trouble codes (DTCs) interpretation, use of BMW diagnostic tools (e.g., DIS, ISTA/D). Repair: Detailed step-by-step repair instructions for all major systems, component replacement, assembly/disassembly procedures. Installation: Procedures for installing common replacement parts and accessories. Calibration: Calibration procedures for electronic systems, sensors, and actuators. Technical Depth Depth: Expert-level, covering complete overhauls, advanced diagnostics, and detailed electronic system analysis. 📊 Manual Specifications File Format Compatibility: Compatible with most modern operating systems (Windows, macOS) via PDF reader or specific software viewer. Print Quality Printability: High-resolution, printable pages for workshop use. Binding Type Binding: N/A (Digital) Paper Type Paper Type: N/A (Digital) ⚙️ Engine Specifications Primary Engine Engine Type: Naturally Aspirated V8 Engine Code: N62B44 Displacement: 4.4 Liters (4398 cc) Bore X Stroke: 92.0 mm x 82.7 mm Compression Ratio: 10.0:1 Valvetrain: DOHC, 4 valves per cylinder, VANOS (Variable Valve Timing) Performance Horsepower Hp: 329 hp @ 6100 RPM Torque Lb Ft: 330 lb-ft @ 3600 RPM Fuel System Fuel Delivery: Sequential Electronic Fuel Injection (SEFI) Fuel Type: Premium Unleaded Gasoline (91+ Octane) Cooling System Coolant Type: BMW Blue Antifreeze/Coolant (G48 ethylene glycol-based) Lubrication System Oil Type: SAE 0W-30 or 0W-40 Synthetic (BMW LL-01 approved) Oil Capacity Quarts: 8.5 US quarts (8.0 Liters) 🔧 Transmission Standard Transmission Type: 6-speed Automatic (GM 6L45) Optional All Wheel Drive: Optional xDrive AWD System Features Transmission Modes: Steptronic manual shifting mode, Adaptive Transmission Control (ATC). Fluid Specs Automatic Transmission Fluid: Dexron VI or approved equivalent Fluid Capacity Quarts Automatic Transmission Fluid Capacity: Approx. 10 US quarts (9.5 Liters) - may vary based on torque converter fill 📐 Dimensions Exterior Wheelbase Inches: 116.4 inches Length Inches: 199.7 inches Width Inches: 73.5 inches Height Inches: 58.2 inches Weights Curb Weight Lbs: 4233 - 4409 lbs (depending on configuration) Gross Vehicle Weight Rating Gvwr Lbs: 5512 lbs (typical) Towing Capacity Lbs: Not Recommended/Not Specified Payload Capacity Lbs: Approx. 1279 lbs 🛡️ Safety Features Ratings NHTSA Front Impact Driver: 5 Stars NHTSA Front Impact Passenger: 5 Stars NHTSA Side Impact Front Seat: 5 Stars NHTSA Side Impact Rear Seat: 5 Stars IIHS Front Crash: Good IIHS Side Impact: Good Active Features Traction Control: Dynamic Traction Control (DTC), Dynamic Stability Control (DSC) Brakes: Anti-lock Braking System (ABS), Electronic Brake-force Distribution (EBD), Brake Assist. Passive Features Airbags: Frontal airbags, front side-impact airbags, head protection system (HPS) curtain airbags for front and rear occupants. Seatbelts: Pretensioning front seatbelts, rear seatbelt reminders. 💡 Technology Features Infotainment System Name: iDrive (CCC - Car Communication Computer) Display Size: 8.8-inch central display Features: Navigation system, radio, CD player, climate control integration, vehicle settings, Bluetooth (optional). Driver Assistance Features: Adaptive Cruise Control (ACC), Park Distance Control (PDC), Rain-sensing wipers, Automatic headlights. Connectivity Features: Onboard computer, optional Bluetooth hands-free system. 🔧 Maintenance Service Intervals Oil Change Interval Miles: Typically 10,000-15,000 miles or 12-24 months, based on BMW Condition Based Service (CBS) system. Air Filter Replacement: Every 30,000 miles or as per CBS indicator. Cabin Filter Replacement: Every 15,000-30,000 miles or annually, depending...