🏷️ Basic Information Identification Make: BMW Model: 3 Series (E46) Year: 2004 Generation Generation Name: E46 Generation Years: 1998-2006 (Globally) 👋 Introduction Market Position Market Segment: Premium compact executive sedan/coupe/convertible/wagon. Competitive Analysis Competitors 2004: Mercedes-Benz C-Class (W203), Audi A4 (B6), Lexus IS300, Infiniti G35. Key Features Driver Focus: Renowned for its engaging driving dynamics, balanced chassis, and driver-centric cockpit. Powertrain Options: Available with a range of inline-four and inline-six M54 engines known for smoothness and performance. 📋 Manual Details Coverage Areas Primary Coverage: Comprehensive service and repair for BMW E46 2004 models. Page Count Estimated Page Count: 1500+ Manual Type Manual Type: Factory Service Repair Manual Language Language: English Format Format: Digital (likely PDF, searchable) 📖 Manual Coverage Systems Covered Engine Management: Detailed diagnostics, component testing, and repair procedures for DME (Digital Motor Electronics). Fuel System: Fuel pump, injectors, pressure regulation, fuel tank, EVAP system diagnosis and repair. Cooling System: Radiator, water pump, thermostat, hoses, fan clutch/electric fan, coolant specifications. Exhaust System: Catalytic converters, mufflers, oxygen sensors, exhaust manifold diagnosis and replacement. Ignition System: Spark plugs, ignition coils, crank and cam position sensors, troubleshooting. Transmission Manual: Clutch assembly, gearbox removal/installation, internal component repair, fluid specifications. Transmission Automatic: GM 5L40-E / ZF 5HP19 / ZF 6HP19 (depending on engine variant) - control modules, solenoid testing, fluid specifications, torque converter. Drivetrain Rear Axle: Differential, driveshafts, CV joints, limited-slip differential (if equipped), fluid specifications. Suspension Front: MacPherson struts, control arms, ball joints, bushings, sway bar, alignment specifications. Suspension Rear: Multi-link independent suspension, shock absorbers, control arms, bushings, alignment specifications. Steering System: Power steering pump, steering rack, tie rods, steering column, fluid type. Braking System: Brake discs, calipers, pads, ABS system, DSC (Dynamic Stability Control), EBD (Electronic Brake-force Distribution), fluid type and bleeding procedures. Wheel Speed Sensors: Diagnosis and replacement for ABS/DSC functionality. Electrical System General: Battery, alternator, starter motor, wiring diagrams, fuse/relay locations. Body Electrical: Lighting systems (headlights, taillights, interior), power windows, locks, mirrors, sunroof, horn. Climate Control: HVAC system, A/C compressor, refrigerant, blower motor, climate control modules, cabin filter. Infotainment Audio: Radio, CD player, speakers, amplifier (if equipped), antenna system. Instrument Cluster: Gauge operation, warning lights, troubleshooting. Srs Airbag System: Airbag modules, sensors, control unit, diagnostic procedures. Security System E46: Immobilizer system (EWS), remote key functions, alarm system. Body Panels: Hood, fenders, doors, trunk lid removal and installation, hinge adjustment. Glass And Seals: Windshield, side windows, rear window, seals, weatherstripping. Interior Trim: Dashboard, door panels, headliner, seats, carpet removal and installation. Lighting Exterior: Headlight aim, bulb replacement, taillight assembly, fog lights. Lighting Interior: Dome light, vanity mirrors, footwell lighting, trunk light. Procedures Included Routine Maintenance: Oil changes, filter replacements (oil, air, cabin), spark plug replacement, brake fluid flush, coolant flush. Component Removal Installation: Step-by-step guides for all major components across all systems. Disassembly Assembly: Detailed instructions for internal components of engines, transmissions, and other assemblies. Troubleshooting Diagnostics: Symptom-based diagnostics, fault code interpretation (OBD-II), electrical system tracing. Repair Procedures: Specific repair instructions for common failures and wear items. Specifications And Tolerances: Torque values, clearances, alignment settings, and other critical specifications. Wiring Diagrams: Comprehensive electrical schematics for all circuits. Special Tools And Procedures: Identification of BMW-specific tools and unique repair methods. Technical Depth Depth: Factory-level detail suitable for professional mechanics and advanced DIY enthusiasts. 📊 Manual Specifications File Format File Format Details: Likely a PDF file, optimized for digital viewing and printing. Searchable text is a key feature of factory manuals. Print Quality Print Quality Recommendation: High-resolution images and clear diagrams ensure readability when printed. Binding Type Binding Type Description: For physical copies, typically coil-bound or perfect-bound for durability and lay-flat use. Paper Type Paper Type Recommendation: Durable, matte-finish paper is ideal for workshop environments to reduce glare and resist oil/grease. ⚙️ Engine Specifications Primary Engine Engine Code Common: M54B22, M54B25, M54B30 (inline-six); N42B18, N46B20 (inline-four) Performance Horsepower Range: 143 hp (N42) to 231 hp (M54B30) Torque Range: 190 Nm (N42) to 300 Nm (M54B30) Fuel System Fuel Injection Type: Sequential Electronic Fuel Injection (SEFI) Recommended Fuel: Premium Unleaded Gasoline (91 AKI or higher) Engine Management Dme Model: MS43 or MS45 (depending on engine and transmission) 🔧 Transmission Standard Standard Transmission: 5-speed Manual Getrag 250G Optional Optional Transmission Auto: 5-speed Automatic GM 5L40-E (RWD); 5-speed Automatic ZF 5HP19 (xDrive); 6-speed Automatic ZF 6HP19 (post-facelift models with M54) Features Steptronic: Available on automatic transmissions for manual shifting. Fluid Specifications Automatic Transmission Fluid: BMW ATF LT-3 (e.g., Pentosin ATF1 or equivalent) Manual Transmission Fluid: BMW MTF LT-2 (e.g., Castrol Syntrans B 75W-80 or equivalent) 📐 Dimensions Exterior Body Styles: Sedan (4-door), Coupe (2-door), Convertible (2-door), Touring (Wagon, 5-door) Weights Curb Weight Range: Approx. 1450 kg - 1700 kg (depending on body style and engine) 🛡️ Safety Features Ratings IIHS Frontal Impact: Good (for applicable models) NHTSA Side Impact: 5-star (for applicable models) Active Features ABS: Standard...