🏷️ Basic Information Identification Make: BMW Model: 3 Series Chassis Code: E46 Model Year: 2003 👋 Introduction Market Position Value Proposition: Enables owners to perform servicing and repairs themselves, saving $50-$60 per hour in shop labor costs. Competitive Analysis Manual Authenticity: Actual Genuine Repair Service Factory Manuals, NOT 3rd party manuals. Key Features Comprehensiveness: COMPLETE official full factory service repair manual covering all aspects of repair. Owner Empowerment: Guides owners to make informed decisions about maintenance and repair. 📋 Manual Details Coverage Areas Engine Service Repair: Yes Transmission Service Repair: Yes Brake System: Yes Wiring Diagram: Yes Electrical System: Yes Suspension: Yes Periodic Lubrication: Yes Steering: Yes Cooling System: Yes Fuel Injection Fuel System: Yes Emission System: Yes HVAC System: Yes Engine Control System: Yes Chassis Body: Yes Restraint System: Yes Interior: Yes Differential Drive: Yes Axle: Yes General Maintenance: Yes Troubleshooting: Yes Page Count Estimated Page Count: Hundreds of pages (exact count not specified but implied to be comprehensive) Manual Type Type: Factory Service Repair Manual Language Language: English Format Format: PDF Download 📖 Manual Coverage Systems Covered All Styles Covered: Yes Procedures Included Maintenance: General maintenance, periodic lubrication Repair: Step-by-step repair for all covered systems Diagnostics Troubleshooting: Advanced troubleshooting guide, diagnosing electrical problems Technical Depth Depth: Complete official factory information, what factory trained technicians know, detailed diagnostics and repair, rebuild, refurbish, restore 📊 Manual Specifications File Format Format: PDF Print Quality Printability: Printable without restriction, individual pages or entire manual Binding Type Binding Type: Digital (printable) Paper Type Paper Type: N/A (Digital download) Search Functionality Searchable: Yes Content Enhancements Illustrations Diagrams: Hundreds of pages with all necessary illustrations, diagrams, and photos Detailed Substeps: Yes Notes Cautions Warnings: Included throughout each chapter Numbered Instructions: Yes Figure Number Matching: Yes Enlarged Insets: Yes Table Of Contents: Numbered and easy to use Delivery Delivery Method: Instant Download link on checkout page Requirements Software Requirement: Adobe PDF Reader Compatibility Operating Systems: All PC based Windows operating systems and Mac ⚙️ Engine Specifications Primary Engine E46 2003 Engine Family: M54 (Inline-6 cylinder), N42/N46 (4-cylinder Valvetronic - specific to certain models) Performance Typical Power Output 325I: Approximately 184-190 hp (varies by specific engine code) Typical Torque 325I: Approximately 175-181 lb-ft (varies by specific engine code) Typical Power Output 330I: Approximately 225-231 hp (varies by specific engine code) Typical Torque 330I: Approximately 214-220 lb-ft (varies by specific engine code) Fuel System Fuel Delivery: Multi-point Fuel Injection (MPI) with VANOS (Variable Valve Timing) Engine Features Valvetronic Technology: Present on N42/N46 engines, absent on M54 Engine Control Module: MS43 or MS45 DME (Digital Engine Electronics) 🔧 Transmission Standard Transmission Type: 5-speed manual transmission (e.g., Getrag 260/5, ZF S5D 320Z) Optional Transmission Type: 5-speed Steptronic automatic transmission (e.g., ZF 5HP19) Features Manual Clutch Type: Hydraulically actuated single dry plate clutch Automatic Transmission Modes: Standard Drive (D), Sport (S), Manual Shift (M) Fluid Specifications Automatic Transmission Fluid: BMW ATF LT-3 (e.g., Pentosin ATF1) Manual Transmission Fluid: BMW MTF LT-2 (e.g., Castrol TAF-X) 📐 Dimensions Exterior Sedan Length: Approx. 4,471 mm (176.0 in) Width: Approx. 1,739 mm (68.5 in) Height: Approx. 1,415 mm (55.7 in) Exterior Coupe Length: Approx. 4,471 mm (176.0 in) Width: Approx. 1,739 mm (68.5 in) Height: Approx. 1,371 mm (54.0 in) Weights Curb Weight 325I: Approx. 1,500-1,550 kg (3,300-3,420 lb) depending on body style and transmission 🛡️ Safety Features Ratings NHTSA Front Impact: 5-star rating (for models equipped with side airbags) IIHS Front Offset: Good (for models tested) Active Features Anti Lock Braking System: Standard Dynamic Stability Control: Standard (DSC III) Passive Features Airbags: Frontal airbags, optional side airbags, optional curtain airbags Seatbelts: 3-point inertia-reel seatbelts with pretensioners and force limiters 💡 Technology Features Infotainment Navigation System: Optional BMW Professional Navigation System (MK4) Audio System: Optional Harman Kardon sound system Driver Assistance Cruise Control: Standard Connectivity Bluetooth Integration: Optional via snap-in adapter or factory-installed option. 🔧 Maintenance Service Intervals Oil Change Interval Typical: Variable Service Interval Indicator (VSI) typically suggests oil changes every 15,000-20,000 miles or annually. Service Intervals Brake Fluid Interval: Every 2 years, regardless of mileage. Service Intervals Coolant Interval: BMW recommends long-life coolant, typically replaced around 100,000 miles or 5 years, but manual will specify exact procedure. Fluid Specifications Engine Oil Recommended Viscosity M54: SAE 0W-30 or 0W-40 meeting BMW LL-01 or LL-04 specifications. Recommended Viscosity N42 N46: SAE 5W-30 or 0W-30 meeting BMW LL-01 or LL-04 specifications. Fluid Specifications Coolant Type: BMW Blue Antifreeze/Coolant (G48) or equivalent. Known Issues Cooling System Leaks: Common issues include cracked plastic coolant expansion tanks, leaking water pumps, and deteriorated hoses. Manual will detail inspection and replacement. Oil Pan Gasket Leaks: Rear main seal and oil pan gasket leaks are relatively common. Manual will cover inspection and replacement procedures. ABS Wheel Speed Sensors: Can fail, leading to ABS and DSC warnings. Manual covers diagnosis and replacement. Blower...