🏷️ Basic Information Identification Make: BMW Model: 3 Series Specific Models Covered: 325i, 325xi Body Styles Covered: Sedan (E46), Sports Wagon (E46) Generation Generation Code: E46 Production Years: 1999, 2000, 2001, 2002, 2003, 2004, 2005 Codes Engine Code Common: M54B25 👋 Introduction Market Position Segment: Compact Executive Sedan/Wagon Reputation: Renowned for driving dynamics, build quality, and sophisticated engineering. Competitive Analysis Key Competitors: Mercedes-Benz C-Class, Audi A4, Lexus IS, Infiniti G35 Key Features Driving Experience: Balanced handling, responsive steering, powerful inline-six engine. All Wheel Drive: Availability of the 'xi' models with BMW's xDrive all-wheel-drive system for enhanced traction. Interior Quality: Premium materials, ergonomic design, driver-focused cockpit. 📋 Manual Details Coverage Areas Major Systems: Engine Mechanical, Engine Fuel & Emission Control, Engine Electrical System, Drivetrain, Suspension, Steering, Brakes, Body, HVAC, Electrical System, Wiring Diagrams Page Count Estimated Page Count: 1500+ Manual Type Type: Complete Workshop Service Repair Manual Language Language: English Format Format: Downloadable PDF 📖 Manual Coverage Systems Covered Powertrain: Engine M54B25, Transmission (5-speed manual, 5-speed automatic), Drivetrain (RWD, AWD xDrive) Chassis: Front & Rear Suspension, Steering System, Brake System (ABS, DSC) Electrical: Engine Control Module (ECM), Ignition System, Lighting, Instruments & Gauges, Body Electronics, Infotainment, SRS Airbag System Body And Interior: Body Panels, Doors, Windows, Seats, Climate Control (HVAC) Procedures Included Maintenance: Scheduled maintenance, oil changes, filter replacements, fluid checks and changes Repair: Engine overhaul, transmission service, suspension component replacement, brake caliper rebuild, electrical component troubleshooting and replacement Diagnostics: Troubleshooting guides, fault code interpretation, diagnostic procedures for all major systems Installation: Component installation and replacement procedures Technical Depth Depth: Comprehensive, covering everything from routine maintenance to complete engine and transmission rebuilds, including detailed electrical schematics and diagnostic procedures. 📊 Manual Specifications File Format File Type: PDF Searchability: Searchable text for quick information retrieval Print Quality Quality: High-resolution, clear images and diagrams Binding Type Binding: Not applicable (downloadable digital format) Paper Type Paper: Not applicable (downloadable digital format) ⚙️ Engine Specifications Primary Engine Engine Type: Naturally Aspirated Inline 6-Cylinder Engine Code: M54B25 Displacement: 2.5 Liters (2494 cc) Performance Horsepower: 184 hp @ 6000 rpm Torque: 175 lb-ft @ 3500 rpm Fuel System Fuel Delivery: Sequential Multi-Port Fuel Injection (SFI) Recommended Fuel: Premium Unleaded Gasoline (91 octane or higher) Technical Features Valve Train: Dual Overhead Camshafts (DOHC), 24 Valves, VANOS (Variable Valve Timing) Block Material: Aluminum Alloy Head Material: Aluminum Alloy 🔧 Transmission Standard Transmission Type: 5-Speed Manual (Getrag GS5-39DZ) Optional Transmission Type: 5-Speed Automatic (Steptronic) Features Automatic Features: Sequential shifting, comfort and sport modes (depending on model year and options) Fluid Type Automatic Transmission Fluid: BMW ATF LT-3 (or equivalent DEXRON III/VI for some earlier models, consult manual for specifics) Manual Transmission Fluid: BMW MTF-LT-1 or MTF-LT-2 (or equivalent GL-4 gear oil) Differential Fluid Rear Differential Fluid: Hypoid Gear Oil API GL-5 SAE 75W-90 📐 Dimensions Exterior Wheelbase: 107.0 inches (2718 mm) Length: 177.4 inches (4506 mm) for Sedan Width: 68.5 inches (1740 mm) Height: 55.7 inches (1415 mm) for Sedan Interior Front Headroom: Approx. 38.4 inches Rear Headroom: Approx. 37.7 inches Cargo Trunk Volume: Approx. 11.2 cubic feet (Sedan) Weights Curb Weight: Approx. 3300-3500 lbs (depending on drivetrain and options) Gross Vehicle Weight Rating: Approx. 4500-4700 lbs 🛡️ Safety Features Ratings NHTSA Front Impact: 5-Star (Driver & Passenger) IIHS Side Impact: Good (for comparable models/years) Active Features Traction Control: Dynamic Stability Control (DSC) - standard on most models Anti Lock Brakes: Anti-lock Braking System (ABS) - standard Brake Assist: Optional on some models Passive Features Airbags: Frontal airbags, front side airbags, optional head protection airbags Seatbelts: 3-point inertia-reel seatbelts with pretensioners Child Seat Anchors: LATCH system (Lower Anchors and Tethers for Children) 💡 Technology Features Infotainment Head Unit: BMW Business CD, BMW Professional CD, optional Navigation System (CCC or MKIV era). Audio System: Standard BMW Hi-Fi, optional Harman Kardon audio system. Driver Assistance Cruise Control: Standard cruise control, adaptive cruise control unavailable on these specific models. Parking Sensors: Optional Park Distance Control (PDC). Connectivity Bluetooth: Optional Bluetooth hands-free system on later models. Aux Input: Optional aux-in jack for audio devices on later models. 🔧 Maintenance Service Intervals Oil Change Interval: Variable, typically 10,000-15,000 miles or annually, as indicated by the vehicle's Condition Based Service (CBS) system or manufacturer recommendation. Air Filter Replacement: Every 30,000-50,000 miles or as needed based on driving conditions. Cabin Filter Replacement: Every 15,000-30,000 miles or annually. Spark Plug Replacement: Typically 60,000-100,000 miles for iridium spark plugs, check manual for exact specification. Coolant Flush: Every 30,000-60,000 miles or 3-5 years. Fluid Specifications Engine Oil Type: BMW Longlife-01 (LL-01) or LL-04 approved synthetic oil, typically 5W-30 or 0W-30. Engine Oil Capacity: Approx. 6.5 US quarts (6.1 Liters) with filter change. Coolant Type: BMW Blue Antifreeze/Coolant (G48, ethylene glycol based). Brake Fluid Type: DOT 4 (BMW High Performance DOT 4) Known Issues Crankcase Ventilation System: Clogged PCV valve and...