🏷️ Basic Information Identification Make: BMW Model: 325i Year: 2004 Codes Chassis Code: E46 Engine Code: M54B25 👋 Introduction Market Position Target Audience: BMW enthusiasts, independent repair shops, DIY mechanics seeking professional-level repair and maintenance guidance for the 2004 BMW 325i. Competitive Analysis Advantage: Official licensing suggests high accuracy and completeness, often mirroring dealership-level technical information. Software format offers enhanced searchability and accessibility compared to traditional printed manuals. Key Features Features: Detailed diagnostic procedures, comprehensive repair instructions, accurate torque values, extensive wiring diagrams, component replacement guides, troubleshooting flowcharts. 📋 Manual Details Coverage Areas Manual Type: Service & Repair Manual Software Language: English Format: Digital Software (likely PDF or proprietary executable) Page Count Estimated Page Count: Over 1500 pages (typical for comprehensive software manuals) 📖 Manual Coverage Systems Covered Powertrain: Engine (M54B25), cooling system, fuel system, exhaust system, engine management (DME), transmission (GM 5L40-E automatic, Getrag 420G manual), driveline components (driveshaft, differential, axles) Chassis: Suspension (front struts, rear multi-link), steering system (hydraulic power steering), braking system (ABS, DSC, disc brakes front and rear), wheel and tire specifications Electrical: Engine control module (DME), body control module (BCM), lighting systems (headlights, taillights, interior), instrumentation, power windows, power seats, central locking, diagnostic connectors (OBD-II), wiring diagrams, sensor troubleshooting Body And Interior: Exterior body panels, door mechanisms, trunk, hood, interior trim, climate control system (HVAC), airbags, seat belt systems Procedures Included Maintenance: Scheduled maintenance intervals, oil changes, filter replacements (oil, air, cabin), spark plug replacement, brake fluid flush, coolant flush, power steering fluid replacement Troubleshooting: Diagnostic trouble codes (DTCs) interpretation, symptom-based troubleshooting guides, electrical system diagnostics, engine performance issues, transmission shifting problems, HVAC system malfunctions Repair And Overhaul: Engine component replacement (e.g., VANOS, alternator, starter), transmission service and repair, brake component replacement (pads, rotors, calipers), suspension component replacement (bushings, ball joints, control arms), steering rack repair, fuel injector replacement, exhaust system repair Technical Data And Specifications: Torque specifications for all fasteners, fluid capacities and types, engine timing procedures, electrical system schematics, component identification, disassembly and reassembly instructions Technical Depth Depth Of Coverage: Comprehensive; covers routine maintenance, detailed diagnostics, component replacement, and major overhaul procedures. Includes wiring diagrams, exploded views, and step-by-step repair instructions suitable for professional technicians and advanced DIY enthusiasts. 📊 Manual Specifications File Format File Type: Software Application (proprietary or PDF suite) Searchability: High (typically allows keyword search across all content) Print Quality Print Capability: Printable pages (user-configurable) Binding Type Binding: Not applicable (software format) Paper Type Paper Quality: Not applicable (software format) ⚙️ Engine Specifications Primary Engine Engine Name: BMW M54B25 Engine Type: Inline 6-cylinder, Double VANOS Displacement: 2494 cc (2.5 Liters) Performance Horsepower: 184 hp @ 6000 rpm (approx.) Torque: 245 Nm (181 lb-ft) @ 3500 rpm (approx.) Fuel System Fuel Delivery: Electronic Fuel Injection (EFI), Sequential Multi-Point Injection (MPI) Fuel Type: Premium Unleaded Gasoline (91-93 octane recommended) Engine Management ECU Type: Bosch Motronic ME9.2 (or similar variant) 🔧 Transmission Standard Transmission Type: Getrag 420G Manual Transmission Manual Gear Ratios: 1st: 4.235, 2nd: 2.527, 3rd: 1.671, 4th: 1.215, 5th: 1.000, Reverse: 3.902 Optional Transmission Type: GM 5L40-E Automatic Transmission Automatic Gear Ratios: 1st: 3.423, 2nd: 1.931, 3rd: 1.429, 4th: 1.000, 5th: 0.725, Reverse: 3.214 Features Clutch Type: Hydraulically actuated single-plate dry clutch Automatic Features: Steptronic manual shifting mode Fluid Specifications Manual Transmission Fluid: BMW MTF LT-2 (or equivalent GL-4 75W-90 synthetic) Automatic Transmission Fluid: Dexron III/VI (or BMW approved substitute) 📐 Dimensions Exterior Length: 4471 mm (176.0 in) Width: 1739 mm (68.5 in) Height: 1372 mm (54.0 in) Wheelbase: 2760 mm (108.7 in) Weights Curb Weight: 1500-1550 kg (3300-3420 lbs) depending on transmission Gross Vehicle Weight Rating: Approx. 1950 kg (4300 lbs) Cargo Trunk Capacity: 410 Liters (14.5 cu ft) Wheels And Tires Standard Wheel Size: 16-inch alloy wheels Optional Wheel Sizes: 17-inch and 18-inch alloy wheels Standard Tire Size: 205/55R16 Wheel Bolt Pattern: 5x120 mm 🛡️ Safety Features Ratings NHTSA Front Impact Rating: 5-Star (for driver and passenger) for 2004 models IIHS Front Offset Crash Rating: Good Active Features Anti Lock Braking System: Standard Dynamic Stability Control: Standard (DSC III) Traction Control System: Standard (ASCS/TCS) Passive Features Airbags: Frontal airbags (driver/passenger), front side-impact airbags, available head protection system (HPS) Seatbelts: 3-point inertia-reel seat belts with pretensioners and force limiters Child Seat Anchors: LATCH system (Lower Anchors and Tethers for CHildren) 💡 Technology Features Infotainment Infotainment System: BMW Business CD or Professional CD radios, optional CD changer, optional navigation system (MK4) Audio Features: AM/FM radio, CD playback, optional satellite radio readiness, premium audio system options (e.g., Harman Kardon) Driver Assistance Cruise Control: Standard Parking Assistance: Optional rear parking sensors (Park Distance Control - PDC) Connectivity Bluetooth Support: Optional, via BMW Assist or Bluetooth adapter Comfort Features Climate Control: Manual or Automatic climate control (optional dual-zone) 🔧 Maintenance Service Intervals Oil Change Interval: Typically every 10,000-15,000 miles or annually, indicated by the...