🏷️ Basic Information Identification Make: BMW Model: 745Li Year: 2003 Codes Chassis Code: E66 Engine Code Family: N62B44 👋 Introduction Market Position Segment: Full-size Luxury Sedan Competitors: Mercedes-Benz S-Class, Audi A8, Lexus LS, Jaguar XJ. Key Features Luxury Appointments: Extended wheelbase ('L'), premium materials, advanced comfort features, sophisticated design. Technology Integration: iDrive infotainment system, advanced driver assistance systems, sophisticated electronic controls. Performance Focus: BMW's characteristic driving dynamics, powerful V8 engine, refined handling. 📋 Manual Details Coverage Areas Primary Coverage: Service and Repair Page Count Estimated Pages: Extensive, likely thousands of pages when compiled from official sources. Manual Type Type: Digital Service and Repair Manual Software Language Language: English Format Format: Software/Digital (likely PDF or proprietary application) 📖 Manual Coverage Systems Covered Engine Mechanical: Engine assembly, cylinder head, valvetrain, crankshaft and pistons, lubrication system, cooling system, fuel system (injection), exhaust system. Engine Electrical: Ignition system, engine management system (DME), sensors, actuators, starter, alternator. Transmission: Automatic transmission (e.g., GM 5L40-E variant for this period), electronic transmission control, torque converter, shift linkage. Drivetrain: Drive shafts, differential, axles. Suspension: Front suspension (e.g., double wishbone, McPherson strut variations), rear suspension (e.g., multi-link), adaptive suspension systems (e.g., EDC - Electronic Damping Control). Steering: Power steering system, steering column, steering rack. Brakes: Hydraulic system, ABS (Anti-lock Braking System), DSC (Dynamic Stability Control), brake discs, pads, calipers, parking brake, brake assist. Electrical System: Battery, charging system, lighting system (headlights, taillights, interior), wiring diagrams, fuse box locations and functions, relays, ground points. Body And Chassis: Body structure, panels, doors, hood, trunk lid, bumpers, glass, seals, underbody protection. HVAC: Heating, Ventilation, and Air Conditioning system, climate control module, compressor, condenser, evaporator, refrigerant, controls. Infotainment: iDrive system, radio, navigation, entertainment system, speaker system, telematics. Comfort Features: Power seats, windows, mirrors, sunroof, central locking, keyless entry, alarm system. Procedures Included Maintenance: Scheduled maintenance (oil changes, filter replacements, spark plugs), fluid level checks and top-offs, tire rotation and balancing, brake inspections, battery maintenance. Diagnostics: Troubleshooting guides, fault code retrieval and interpretation (OBD-II), symptom-based diagnostics, diagnostic tool usage (e.g., ISTA/D). Repair Procedures: Step-by-step instructions for component replacement, rebuilds, adjustments, and calibrations for all major systems. Electrical Repair: Wiring harness repair, component testing and replacement, troubleshooting electrical faults using diagrams. Specifications And Data: Torque specifications, clearances, fluid capacities, electrical specifications, diagnostic parameters. Technical Depth Depth Level: Comprehensive, covering basic maintenance to complete engine and transmission rebuilds, advanced electrical diagnostics, and bodywork repairs. 📊 Manual Specifications File Format Digital Format: Likely PDF or proprietary diagnostic software format for interactive use and searchability. Print Quality Printability: High-resolution images, diagrams, and text, designed for clear printing of specific sections or the entire manual. Binding Type Binding Type: Not applicable for software format. Paper Type Paper Type: Not applicable for software format. ⚙️ Engine Specifications Primary Engine Engine Type: Naturally Aspirated V8 Displacement: 4.4 Liters (4398 cc) Engine Code: N62B44 Performance Horsepower: 329 hp @ 6100 rpm Torque: 330 lb-ft @ 3600 rpm Fuel System Fuel Delivery: Sequential Multi-Point Fuel Injection (SFI) Fuel Type: Premium Unleaded Gasoline (91 octane or higher recommended) Engine Features Variable Valve Timing: VANOS (Variable Valve Timing) Valvetrain Configuration: DOHC (Double Overhead Camshafts), 4 valves per cylinder Ignition System: Distributorless Electronic Ignition (DIS) with coil-on-plug ignition. 🔧 Transmission Standard Transmission Type: 6-Speed Automatic Steptronic Optional Optional Transmission: N/A for 745Li model year 2003 Features Transmission Features: Steptronic manual shift mode, adaptive shift logic, electronic transmission control. Fluid Specifications Transmission Fluid Type: BMW Approved ATF (e.g., Mobil ATF LT 71141 or equivalent, check specific manual for exact part number) Fluid Capacities Transmission Fluid Capacity: Approximately 8.5 - 9.5 liters (check specific manual for exact capacity and fill procedure) 📐 Dimensions Exterior Wheelbase: 124.4 inches (3160 mm) Length: 201.0 inches (5106 mm) Width: 73.5 inches (1867 mm) Height: 58.1 inches (1476 mm) Weights Curb Weight: Approximately 4400-4600 lbs (2000-2100 kg) Gross Vehicle Weight Rating Gvwr: Check specific vehicle placard, typically around 5600-5800 lbs. Cargo Trunk Capacity: Approximately 18.0 cubic feet (510 liters) 🛡️ Safety Features Ratings NHTSA Front Crash Test: 5-Star (likely, as per BMW safety standards of the era) NHTSA Side Crash Test: 5-Star (likely, as per BMW safety standards of the era) Active Features Electronic Stability Control: Dynamic Stability Control (DSC) including Automatic Stability Control + Traction (ASC+T). Antilock Brakes: Anti-lock Braking System (ABS) Traction Control: Traction Control System Brake Assist: Brake Assist system Passive Features Airbags: Frontal airbags, side-impact airbags, front and rear head protection system (curtain airbags). Seatbelts: 3-point inertia-reel seatbelts with pretensioners and force limiters. Child Seat Anchors: LATCH (Lower Anchors and Tethers for Children) system. 💡 Technology Features Infotainment Infotainment System: iDrive system with a central controller and color LCD screen. Audio System: Premium sound systems, often Logic7 by Harman Kardon, with multiple speakers and subwoofer. Driver Assistance Adaptive Cruise Control: Available Adaptive Cruise Control (ACC). Parking Assist: Available parking sensors...