🏷️ Basic Information Identification Make: BMW Model: 3 Series Model Variant: 325i / 325xi Year: 2004 Generation Chassis Code: E46 Generation Name: Fourth Generation E46 Codes Engine Code Prefix: M54 👋 Introduction Market Position Vehicle Segment: Compact Executive Sedan/Coupe/Convertible/Wagon Brand Philosophy Alignment: Embodies BMW's 'Ultimate Driving Machine' ethos with balanced performance and luxury. Competitive Analysis Key Competitors: Mercedes-Benz C-Class, Audi A4, Lexus IS. Key Features Drivetrain Options: Rear-wheel drive (325i) and xDrive all-wheel drive (325xi). Engine Type: Naturally aspirated inline-six cylinder. Chassis Dynamics: Renowned for balanced weight distribution and precise handling. 📋 Manual Details Coverage Areas Comprehensive Scope: Covers all major mechanical, electrical, and body systems. Region Of Origin: North America (primarily, but applicable to global variants with minor regional differences noted). Page Count Estimated Pages: Hundreds (exact count varies based on internal pagination, but typically exceeding 1000 pages for a complete factory manual). Manual Type Manual Classification: Factory Service Repair Manual (FSM) Additional Manual Types Covered: Includes diagnostic procedures, repair instructions, and maintenance schedules. Language Primary Language: English Format Digital Format: Downloadable PDF Printability: Printable (allows printing entire manual or specific sections). 📖 Manual Coverage Systems Covered Engine Mechanical: Engine overhaul, cylinder head, block, pistons, crankshaft, camshafts, timing system, lubrication, cooling. Engine Management: Fuel injection, ignition system, emissions control, engine control unit (ECU) diagnostics and programming. Transmission Manual: Manual transmission (Getrag or ZF) repair, clutch, flywheel, driveshafts. Transmission Automatic: Automatic transmission (GM 5L40-E) overhaul, valve body, torque converter, mechatronics. Drivetrain: All-wheel drive (xi) system, differential, transfer case, axle shafts, wheel bearings. Suspension: Front and rear suspension, control arms, shock absorbers, struts, springs, bushings, subframes. Steering: Power steering system, steering rack, steering column, steering wheel removal. Brakes: Hydraulic system, ABS, DSC (Dynamic Stability Control), brake calipers, rotors, pads, lines, parking brake. Electrical System: Battery, alternator, starter, wiring diagrams, fuses, relays, body control module (BCM). Lighting: Headlights, taillights, interior lighting, fog lights, bulb replacement, headlight aiming. Comfort Systems: HVAC (Heating, Ventilation, and Air Conditioning), blower motor, climate control unit, refrigerant system. Interior Trim: Dashboard, door panels, seats, headliner, center console removal and installation. Exterior Body: Body panels, bumpers, doors, hood, trunk, glass, seals, exterior trim. Infotainment: Radio, CD player, navigation system (if equipped), speaker replacement. Procedures Included Routine Maintenance: Oil changes, filter replacements, spark plug replacement, fluid level checks and top-offs. Troubleshooting: Diagnostic flowcharts, common fault identification, symptom-based troubleshooting. Repair Procedures: Step-by-step instructions for component replacement and repair. Diagnostic Procedures: OBD-II scan tool usage, reading fault codes, live data interpretation. Installation Procedures: Component installation and adjustment. Technical Depth Diagnostic Level: Advanced diagnostics with detailed descriptions of sensor inputs, outputs, and control module logic. Repair Complexity: Covers everything from basic fluid changes to complete engine and transmission rebuilds. Electrical Diagrams: Detailed and comprehensive wiring schematics for all electrical systems. Torque Specifications: Precise torque values for all critical fasteners. Special Tools: Identification and usage instructions for specialized BMW tools. 📊 Manual Specifications File Format PDF Version: Typically PDF/A or a compatible version for broad software support. Searchable Text: Yes, the PDF is expected to have OCR (Optical Character Recognition) for full text searchability. Print Quality Image Resolution: High resolution for clear diagrams, illustrations, and photographs. Binding Type Digital Binding: N/A (digital format) Paper Type Digital Paper Type: N/A (digital format) ⚙️ Engine Specifications Primary Engine Engine Code: M54B30 Engine Type: Inline 6-cylinder, Naturally Aspirated Displacement: 2979 cc (3.0 Liters) Bore X Stroke: 84.0 mm x 89.6 mm Compression Ratio: 10.2:1 Performance Horsepower Peak: 225 hp @ 6000 rpm Torque Peak: 214 lb-ft (290 Nm) @ 3500 rpm Fuel System Fuel Delivery: Sequential Multi-Port Fuel Injection (MPFI) Fuel Type Recommendation: Premium Unleaded (91+ Octane) Valvetrain Valvetrain Configuration: Dual Overhead Camshafts (DOHC), 4 valves per cylinder Valve Actuation: Double VANOS (Variable Valve Timing on intake and exhaust camshafts) 🔧 Transmission Standard Transmission Type 325I: 5-Speed Manual (Getrag 420G) Optional Transmission Type Optional: 5-Speed Automatic with Steptronic (GM 5L40-E) Features Automatic Features: Driver-selectable modes, manual shifting via Steptronic. Fluid Specifications Manual Transmission Fluid: BMW MTF LT-2 (or equivalent GL-4 SAE 75W-90) Automatic Transmission Fluid: Dexron III (or equivalent GM spec) Clutch Clutch Type: Hydraulically actuated, single dry plate. 📐 Dimensions Exterior Wheelbase: 107.4 inches (2728 mm) Length: 177.4 inches (4505 mm) Width: 68.5 inches (1740 mm) Height: 55.7 inches (1415 mm) Front Track: 58.5 inches (1486 mm) Rear Track: 59.1 inches (1501 mm) Cargo Sedan Trunk Volume: Approx. 12.4 cubic feet (350 Liters) Weights Curb Weight 325I: Approx. 3373 lbs (1530 kg) Curb Weight 325Xi: Approx. 3538 lbs (1605 kg) 🛡️ Safety Features Ratings NHTSA Front Impact Driver: 5-Star (2004 model year) NHTSA Front Impact Passenger: 5-Star (2004 model year) IIHS Side Impact: Good (for models equipped with side airbags) Active Features Traction Control: Traction Control System (TCS) standard Stability Control: Dynamic Stability Control (DSC) standard Antilock Brakes: Anti-lock Braking System (ABS) standard Passive Features Airbags...