🏷️ Basic Information Identification Make: BMW Model: 3 Series Model Variant: 325i Chassis Code: E46 Production Years: 1999-2005 👋 Introduction Market Position Segment: Compact Executive Sedan/Coupe/Convertible Target Audience: Enthusiast drivers, DIY mechanics, BMW owners seeking detailed repair and maintenance information. Competitive Analysis Key Competitors: Mercedes-Benz C-Class, Audi A4, Lexus IS300, Infiniti G35. Key Features Driving Dynamics: Renowned for its balanced chassis, rear-wheel-drive platform, and engaging driving experience, characteristic of BMW's 'Ultimate Driving Machine' philosophy. Powertrain Options: Featured the smooth and potent M54 inline-six engine, offering a good balance of performance and refinement. Design: Clean, classic lines designed by Chris Bangle, with a focus on aerodynamic efficiency and BMW's signature styling cues. 📋 Manual Details Coverage Areas Systems Covered: Engine, Fuel System, Cooling System, Exhaust System, Clutch, Transmission (Manual & Automatic), Driveshaft, Differential, Suspension (Front & Rear), Steering, Brakes (Front & Rear), Electrical System, Bodywork, HVAC System, Interior Trim, Diagnostic Procedures, Specifications Page Count Estimated Page Count: 1500+ Manual Type Manual Type: Service and Repair Manual Language Language: English Format Format: PDF 📖 Manual Coverage Systems Covered Engine Mechanical: Detailed procedures for engine overhaul, including cylinder head, pistons, connecting rods, crankshaft, valve train, timing chain, oil pump, and lubrication system. Fuel And Emissions: Diagnosis and repair of fuel injection system (DME - Digital Motor Electronics), fuel pump, injectors, fuel pressure regulator, evaporative emissions control (EVAP), and catalytic converter. Includes diagnostic trouble codes (DTCs). Cooling System: Maintenance and repair of radiator, water pump, thermostat, coolant expansion tank, hoses, and cooling fan. Includes coolant type and capacity. Exhaust System: Repair and replacement of exhaust manifolds, catalytic converters, mufflers, and pipes. Torque specifications for exhaust system fasteners. Drivetrain: Repair and overhaul of clutch assembly, manual transmission (Getrag 250G), automatic transmission (GM A5S360R/A5S325Z), driveshaft, universal joints, and rear differential. Includes fluid types and capacities. Suspension And Steering: Detailed procedures for front and rear suspension components: struts, shock absorbers, control arms, ball joints, bushings, springs, sway bars. Power steering system diagnosis and repair, including pump, rack and pinion, and fluid. Brakes: Front and rear brake system maintenance and repair: brake pads, rotors, calipers, brake lines, master cylinder, ABS system (Anti-lock Braking System), DSC (Dynamic Stability Control). Includes bleeding procedures and brake fluid specifications. Electrical System: Comprehensive wiring diagrams for all vehicle systems, including engine management, lighting, power windows, central locking, audio system, instrument cluster, and battery/charging system. Fuse box layouts and relay functions. Body And Chassis: Body panel repair, door mechanisms, window regulators, exterior trim, and underbody protection. Includes jacking points and towing procedures. HVAC System: Diagnosis and repair of heating, ventilation, and air conditioning (HVAC) system, including blower motor, evaporator, condenser, refrigerant system, and climate control unit. Procedures Included Preventive Maintenance: Oil and filter changes, air filter replacement, cabin filter replacement, spark plug replacement, coolant flush, brake fluid flush, transmission fluid changes, differential fluid changes. Diagnostic Troubleshooting: Systematic diagnostic procedures for common and uncommon issues, using diagnostic trouble codes (DTCs) and live data from the OBD-II (On-Board Diagnostics) system. Component Replacement: Step-by-step instructions for replacing all major and minor components, including engine parts, transmission, suspension elements, brake components, sensors, actuators, and interior trim. Rebuilding Overhauling: Detailed instructions for complete engine and transmission rebuilding, including torque specifications, clearances, and assembly sequences. Electrical Diagnostics: Troubleshooting electrical circuits using wiring diagrams, multimeters, and diagnostic tools. Repair of wiring harnesses, connectors, and electronic control modules (ECMs). Technical Depth Diagnostic Tools: Information on using BMW-specific diagnostic tools (e.g., DIS, ISTA) and generic OBD-II scanners for fault code retrieval and data analysis. Torque Specifications: Precise torque values for all critical fasteners, including engine components, suspension, brakes, wheels, and driveline. Clearances And Tolerances: Specifications for engine component clearances (e.g., piston ring gap, bearing clearances) and suspension alignment specifications. Wiring Diagrams: Comprehensive, high-resolution wiring diagrams for all electrical systems, color-coded for clarity. Special Tools: Identification and usage of specialized tools required for specific repair procedures, such as piston ring compressors, valve spring compressors, and bearing pullers. 📊 Manual Specifications File Format File Format: Portable Document Format (PDF) Searchability: Fully searchable text for quick access to specific information. Print Quality Print Quality: High-resolution scans, suitable for printing individual pages or the entire manual. Binding Type Binding Type: N/A (Digital PDF) Paper Type Paper Type: N/A (Digital PDF) ⚙️ Engine Specifications Primary Engine Engine Code: M54B30 Engine Type: 3.0L Naturally Aspirated Inline-6 (Gasoline) Displacement: 2979 cc (3.0 liters) Bore X Stroke: 84.0 mm x 89.6 mm Compression Ratio: 10.2:1 Valve Train: DOHC (Double Overhead Camshafts), 24 valves, VANOS (Variable Valve Timing) Performance Horsepower: 225 hp @ 6,100 rpm Torque: 214 lb-ft @ 3,500 rpm Fuel System Fuel Induction: Sequential Multi-Port Fuel Injection (SMPI) Fuel Type: Premium Unleaded (91 Octane or higher recommended) Engine Management: Bosch Motronic ME7.2 or similar DME 🔧 Transmission Standard Transmission Type Standard: 5-speed Manual Transmission (Getrag 250G) Optional Transmission Type Optional:...