Basic Information Identification Make: BMW Model: 3 Series Chassis Code: E46 Model Year: 2004 Introduction Market Position Target Audience: BMW owners with basic mechanical skills and independent auto service professionals. Competitive Analysis Value Proposition: Provides dealership-level repair information, enabling cost savings on maintenance and repairs, and empowering informed communication with technicians. Key Features Content Type: Step-by-step instructions, diagrams, illustrations, wiring schematics, and specifications. Accuracy: Vehicle-specific, not generic; identical to manuals used by authorized dealers. Usability: Clear, concise text and illustrations designed for ease of use by individuals with basic mechanical knowledge. Manual Details Coverage Areas Covered Systems: General Information, Engine Mechanical, Engine Electrical, Emission Control, Fuel System, Clutch System, Manual Transaxle, Automatic Transaxle, Driveshaft & Axle, Suspension System, Steering System, Restraint System, Brake System, Body (Interior & Exterior), Body Electrical System, HVAC Page Count Estimated Page Count: High volume; exact count not specified but implies comprehensive coverage. Manual Type Manual Type: Service Repair Workshop Manual Language Language: English Format Digital Format: PDF Manual Coverage Systems Covered Engine Mechanical: Detailed coverage including cylinder head, block, crankshaft, pistons, connecting rods, camshafts, timing systems, and lubrication. Engine Electrical: Includes ignition system, starting system, charging system, sensors, actuators, and engine control unit (ECU) diagnostics. Emission Control: Information on emissions-related components, catalytic converters, oxygen sensors, and evaporative emission control systems. Fuel System: Covers fuel injection systems, fuel pump, injectors, fuel pressure regulator, and fuel tank components. Transmission Manual: Detailed repair procedures for the manual gearbox, clutch assembly, and shifting mechanisms. Transmission Automatic: Procedures for automatic transmission service, repair, and diagnostics, including torque converter and valve body. Suspension Steering: Covers front and rear suspension components, shock absorbers, springs, control arms, and steering system diagnostics and repair. Brakes: Detailed information on brake system components, ABS, DSC, brake pad and rotor replacement, fluid flushing, and caliper servicing. Body Electrical: Includes lighting, power windows, central locking, mirrors, wipers, horns, and interior electronics. HVAC: Covers climate control system diagnosis, refrigerant handling, component replacement (compressor, condenser, evaporator), and blower motor service. Procedures Included Maintenance: Routine maintenance tasks such as oil changes, filter replacements, fluid checks, spark plug replacement, and belt inspection/replacement. Troubleshooting: Diagnostic procedures for identifying and resolving common and uncommon vehicle issues, including symptom-based troubleshooting. Repair: Step-by-step instructions for the repair and replacement of virtually all vehicle components and systems. Diagnostics: Guidance on using diagnostic tools and interpreting fault codes (DTCs) for various electronic control units. Technical Depth Depth Of Coverage: Comprehensive, mirroring dealership technician resources, suitable for both basic DIY repairs and advanced professional diagnostics. Manual Specifications File Format Compatibility: Compatible with all versions of Windows and Mac operating systems. Print Quality Printability: Fully printable pages, allowing users to print specific sections as needed. Binding Type Binding: N/A (Digital PDF Format) Paper Type Paper Quality: N/A (Digital PDF Format) Engine Specifications Primary Engine Engine Families Covered: Likely covers M54B22, M54B25, M54B30 (inline-6), and potentially M43B19, N42B20 (inline-4) common in E46 2004 models. Performance Horsepower Torque: Specific figures would vary by engine variant, but M54 engines typically range from 170 hp to 231 hp and corresponding torque figures. Fuel System Injection Type: Multi-point fuel injection (MPI) or sequential multi-point fuel injection (SMPI) depending on engine. Fuel Type: Premium Unleaded Gasoline (91 RON or higher recommended). Transmission Standard Manual Transmission Options: Typically Getrag 5-speed (e.g., GS5-39DZ) for most models, potentially 6-speed for M3 variants (which may or may not be covered). Optional Automatic Transmission Options: Typically ZF 5-speed automatic transmissions (e.g., 5HP19, 5HP24 for higher torque engines). Features Transmission Fluid Spec: Manual: GL-4 or GL-5 gear oil (specific viscosity to be confirmed in manual). Automatic: ATF Dexron III or equivalent. Dimensions Exterior Body Styles: Sedan (4-door), Coupe (2-door), Convertible (2-door), Sports Wagon/Touring (5-door). Weights Curb Weight: Varies significantly by model and body style, typically ranging from 3,100 lbs to 3,700 lbs. Safety Features Ratings NHTSA Front Impact: The E46 generation generally received high ratings in frontal crash tests (e.g., 5-star). IIHS Side Impact: The E46 generation generally received good ratings in side impact tests. Active Features Stability Control: Dynamic Stability Control (DSC) is standard or optional on most 2004 models. Traction Control: Automatic Stability Control and Traction (ASC+T) or DSC is featured. Passive Features Airbags: Frontal airbags, side airbags, and optional head airbags. Technology Features Infotainment Audio System: Standard BMW Business CD, optional BMW Professional CD or CD changer, and Harman Kardon sound system options available. Navigation: Optional MKIV Navigation system available, often with a trunk-mounted CD-ROM drive. Driver Assistance Parking Sensors: Optional rear Park Distance Control (PDC). Connectivity Bluetooth: Optional Bluetooth integration for hands-free calling was available on some models, often integrated with the Professional radio or navigation system. Maintenance Service Intervals Oil Change Interval: Typically 10,000-15,000 miles or 12-24 months, dependent on driving conditions and vehicle's Condition Based Service (CBS) system if equipped. Brake Fluid Flush: Recommended every 2...