Basic Information Identification Make: BMW Model: 3 Series Model Variant: 328i Production Years Covered: 1999-2005 Codes Chassis Code: E46 Introduction Market Position Segment: Compact Executive Sedan/Coupe/Convertible Brand Perception: BMW's 3 Series is renowned for its sporty driving dynamics, premium build quality, and sophisticated engineering. Competitive Analysis Key Competitors: Mercedes-Benz C-Class, Audi A4, Lexus IS, Infiniti G35. Key Features Vehicle Driving Dynamics: Balanced chassis, rear-wheel-drive platform, and responsive steering contribute to its 'Ultimate Driving Machine' reputation. Engine Performance: Smooth, powerful inline-six engines known for their refinement and performance. Build Quality: Premium materials and meticulous assembly typical of BMW vehicles. Manual Value Proposition Owner Benefit: Empowers owners to perform routine maintenance, diagnose issues, and undertake repairs, saving time and money. Professional Benefit: Provides a reliable reference for independent workshops and professional technicians. Manual Details Coverage Areas Primary Coverage: Comprehensive service, repair, and maintenance for BMW 328i (E46) models. Specific Systems: Engine, transmission, drivetrain, suspension, steering, brakes, electrical systems, body, HVAC, emissions, diagnostics. Page Count Estimated Pages: 1000+ Manual Type Type: Service and Repair Manual Language Language: English Format Format: PDF Download Manual Coverage Systems Covered Engine Mechanical: Detailed breakdown of the M52/M54 inline-six engines, including cylinder head, block, valvetrain, lubrication, and cooling systems. Engine Management: Fuel injection, ignition system, electronic engine control (DME), sensors, actuators, emission controls, and diagnostics. Transmission Manual: Service and repair procedures for Getrag 5-speed manual transmissions (e.g., S5D 250G), including clutch, gearbox, and shifter. Transmission Automatic: Service and repair for ZF 5HP19/5HP24 automatic transmissions, including torque converter, valve body, and electronic control. Drivetrain: Rear-wheel drive system, including driveshaft, universal joints, differential, and axle shafts. Suspension Front: MacPherson strut front suspension, including control arms, ball joints, bushings, springs, and shock absorbers. Suspension Rear: Multi-link rear suspension, including control arms, trailing arms, bushings, springs, and shock absorbers. Steering: Hydraulic power steering system, including steering rack, pump, hoses, and steering column. Brakes Front: Ventilated disc brakes, including caliper, rotor, pads, and ABS components. Brakes Rear: Solid disc brakes (or ventilated on some models), including caliper, rotor, pads, and ABS components. Electrical System Base: 12V battery, alternator, starter motor, wiring diagrams for core functions. Body Exterior: Body panels, doors, hood, trunk, bumpers, glass, mirrors, and associated trim. Body Interior: Seats, dashboard, door panels, headliner, carpets, and interior trim components. HVAC: Heating, ventilation, and air conditioning (HVAC) system, including compressor, condenser, evaporator, and climate control unit. Lighting: Headlights, taillights, interior lighting, fog lights, and related wiring. Infotainment: Radio, CD player, navigation system (if equipped), and speaker systems. Procedures Included Routine Maintenance: Oil changes, filter replacements (oil, air, fuel, cabin), fluid checks and changes (coolant, brake, power steering, transmission, differential), spark plug replacement, belt replacement. Engine Repair: Top-end overhaul, piston and ring replacement, crankshaft and bearing service, timing chain/belt service, oil pump replacement, gasket replacement. Transmission Repair: Clutch replacement, transmission fluid and filter changes, seal replacement, internal component repair (manual and automatic). Suspension And Steering Repair: Component replacement (struts, shocks, control arms, ball joints, tie rods, bushings), power steering system repair, wheel alignment procedures. Brake System Repair: Pad and rotor replacement, caliper service, brake line replacement, brake fluid flush and bleed, ABS system diagnostics and repair. Electrical Diagnostics: Troubleshooting of electrical faults using wiring diagrams, diagnostic trouble codes (DTCs), component testing. Climate Control Repair: Refrigerant service, component replacement (compressor, condenser, evaporator, expansion valve, blower motor), leak testing. Body And Trim Repair: Panel replacement, dent repair, glass replacement, interior trim removal and installation. Emission System Repair: Catalytic converter replacement, O2 sensor testing and replacement, EVAP system diagnosis and repair. Technical Depth Depth: Comprehensive, ranging from basic owner maintenance to full engine and transmission rebuilds. Diagnostic Coverage: Includes detailed diagnostic procedures, fault code interpretation (OBD-II), and component testing methods. Wiring Diagrams: Extensive and detailed electrical wiring diagrams for all major systems, essential for troubleshooting. Specifications And Tolerances: Precise technical specifications, torque values, fluid capacities, and critical operating tolerances for all components. Manual Specifications File Format Format: PDF Searchability: Typically searchable text-based PDF for easy navigation. Print Quality Quality: High-resolution digital reproduction of original factory service manuals. Binding Type Binding: N/A (Digital Download) Paper Type Paper: N/A (Digital Download) Engine Specifications Primary Engine Engine Code: M52B28 (early models), M54B30 (later models, often found in 330i but relevant for engine family understanding) Engine Type: Naturally Aspirated Inline 6-Cylinder Displacement: 2.8 Liters (2793 cc for M52B28) Performance Horsepower M52B28: 190 hp @ 5500 rpm Torque M52B28: 206 lb-ft @ 3950 rpm Fuel System Injection Type: Multi-point Fuel Injection (Bosch Motronic ME 7.x series) Fuel Type: Premium Unleaded (91+ octane recommended) Engine Management Variable Valve Timing: VANOS (Variable Valve Timing system) Transmission Standard Type: 5-Speed Manual (e.g., Getrag S5D 250G) Optional Type: 5-Speed Automatic (e.g., ZF 5HP19) Features Traction Control: Available as ASC+T (Automatic Stability Control and Traction). Stability Control: Available as DSC (Dynamic Stability Control) on later models. Dimensions...