🏷️ Basic Information Identification Make: BMW Model: 745Li Year: 2004 Generation Chassis Code: E66 Codes Engine Code Variant: N62B44 👋 Introduction Market Position Segment: Full-size Luxury Sedan Target Audience: Owners seeking in-depth maintenance and repair knowledge, Independent repair shops Competitive Analysis Key Competitors: Mercedes-Benz S-Class, Audi A8, Lexus LS Key Features Premium Offering: Represents BMW's flagship luxury sedan, emphasizing comfort, technology, and performance. Long Wheelbase: The 'L' designation indicates the long-wheelbase version, providing enhanced rear passenger space. 📋 Manual Details Coverage Areas Language: English Format: Software (likely PDF or proprietary application) Manual Type: Official Service and Repair Manual Page Count Estimated Page Count: Extensive, typically over 1500 pages for this level of detail 📖 Manual Coverage Systems Covered Powertrain: Engine (N62B44 V8), Transmission (GM 6-speed automatic), Drivetrain Chassis: Suspension (Adaptive Drive, Active Roll Stabilization), Steering, Brakes (including ABS, DSC) Electrical: Wiring diagrams, EHC (Electric Comfort Control), DME (Digital Motor Electronics), ABS/ASC/DSC modules, Body Control Modules (BCM), Infotainment, Lighting, Power Accessories Body: Exterior panels, Interior trim, Doors, Windows, Sunroof, HVAC system Procedures Included Maintenance: Routine service, Fluid changes, Filter replacements, Inspections Diagnostics: Troubleshooting guides, Fault code interpretation, System diagnostics Repair: Component removal and installation, Engine rebuilds, Transmission service, Electrical component repair, Bodywork repair Special Tools: Identification and usage of BMW-specific tools Technical Depth Diagnostics Depth: Comprehensive, including diagnostic connector locations, scan tool procedures, and component testing Repair Depth: Detailed step-by-step instructions for major repairs and overhauls Specifications Depth: Torque values, clearances, alignments, electrical specifications 📊 Manual Specifications File Format Searchability: Likely searchable text for quick information retrieval Print Quality Image Resolution: High resolution for clear diagrams and illustrations Binding Type Software Format: Proprietary software or commonly accessible PDF Paper Type Digital Medium: Digital delivery, no physical paper ⚙️ Engine Specifications Primary Engine Engine Type: Naturally Aspirated V8 Displacement: 4.4 Liters (4398 cc) Bore X Stroke: 92.0 mm x 82.7 mm Compression Ratio: 10.0:1 Performance Horsepower: 329 hp @ 6100 rpm Torque: 315 lb-ft @ 3600 rpm Fuel System Fuel Delivery: Sequential Electronic Fuel Injection (SEFI) Fuel Type: Premium Unleaded Gasoline (91 Octane or higher recommended) Engine Management ECU Type: DME (Digital Motor Electronics) 🔧 Transmission Standard Transmission Type: 6-speed Automatic (GM 6L45 or similar) Optional Drive Type: Rear-Wheel Drive (RWD), xDrive (All-Wheel Drive) Features Shifting Modes: Steptronic (manual shifting capability), Sport Mode Fluid Specifications Transmission Fluid Type: BMW ATF (Automatic Transmission Fluid) or equivalent (e.g., Dexron III/VI, consult manual for specific part number) 📐 Dimensions Exterior Length: Approximately 5169 mm (203.5 inches) Width: Approximately 1871 mm (73.7 inches) Height: Approximately 1472 mm (57.9 inches) Interior Wheelbase: Approximately 3128 mm (123.1 inches) Cargo Trunk Volume: Approximately 500 liters (17.6 cubic feet) Weights Curb Weight: Approximately 1850 - 1950 kg (4079 - 4300 lbs) 🛡️ Safety Features Ratings NHTSA Front Crash: Likely 5-star (based on typical BMW safety performance) IIHS Side Crash: Likely 'Good' (based on typical BMW safety performance) Active Features Stability Control: Dynamic Stability Control (DSC) Traction Control: Automatic Stability Control and Traction (ASC+T) Brake Assist: Brake Assist System (BAS) Passive Features Airbags: Front, side-impact, and head protection airbags Seatbelts: 3-point inertia-reel seatbelts with pretensioners and force limiters 💡 Technology Features Infotainment System Name: iDrive (first generation) Features: Navigation, Radio, CD Player, Climate Control, Vehicle Settings integrated through a central control knob and screen. Driver Assistance Adaptive Cruise Control: Available as an option (ACC) Parking Sensors: Park Distance Control (PDC) front and rear Connectivity Phone Integration: Bluetooth preparation, often with a cradle in the armrest. Convenience Features Power Seats: Standard 14-way power adjustable front seats with memory Soft Close Doors: Optional feature for enhanced door closing 🔧 Maintenance Service Intervals Oil Change Interval: Condition-based service (CBS), typically 10,000-15,000 miles or annually. Microfilter Replacement: Recommended every 2 years or 30,000 miles. Spark Plug Replacement: Typically around 60,000 miles for the N62 engine (refer to manual for exact interval). Fluid Specifications Engine Oil Type: BMW Longlife-01 (LL-01) approved synthetic 5W-30 or 0W-30 oil. Engine Oil Capacity: Approximately 8.5 liters (9 US quarts). Coolant Type: BMW Blue Antifreeze/Coolant (G48 or equivalent). Known Issues Ccv System: Crankcase Ventilation (CCV) system can clog, leading to oil leaks and rough running. Ignition Coils And Plugs: Can be prone to failure, especially on older models, causing misfires. Cooling System Leaks: Plastic coolant pipes and expansion tanks can become brittle and leak. Oil Pan Gasket Leaks: Common issue on V8 engines requiring significant labor to replace. Active Suspension Faults: Active Drive and Active Roll Stabilization components can develop faults. 📚 Vehicle History Brand Heritage Bmw Legacy: BMW is renowned for its 'Ultimate Driving Machine' philosophy, emphasizing performance, engineering, and luxury. Model Evolution E65 E66 Generation: The E65 (standard wheelbase) and E66 (long wheelbase) generation represented a significant departure in design and technology for the 7 Series, introducing iDrive and advanced electronic systems. Production Production Years: 2001-2008 (for E65/E66 generation)...