🏷️ Basic Information Identification Make: BMW Model: 3 Series Chassis Code: E46 Performance Variant: M3 Sub Models Covered: 323i, 325i, 325xi, 328i, 330i, 330xi Codes Engine Codes: M52TU (323i, 328i), M54B25 (325i/xi), M54B30 (330i/xi), S54 (M3) 👋 Introduction Market Position Positioning: The BMW E46 3 Series, particularly the M3 variant, represented a peak in compact executive sports sedan/coupe performance and handling during its production run. It competed with vehicles like the Mercedes-Benz C-Class AMG and Audi S4. Competitive Analysis Comparison: The E46 M3, with its naturally aspirated S54 engine, was lauded for its driver engagement and motorsport-derived technology, distinguishing it from some turbocharged competitors of the era. Key Features Features: The E46 chassis is known for its excellent balance and handling. The M3 variant introduced specific performance upgrades including a more powerful engine, enhanced suspension, and aerodynamic enhancements. 📋 Manual Details Coverage Areas Primary Coverage: Mechanical, Electrical, Body, Maintenance, Troubleshooting, Repair Page Count Estimated Pages: 1000+ Manual Type Type: Factory Service Repair Manual Language Language: English Format Format: PDF (Digital Download) 📖 Manual Coverage Systems Covered Engine: Mechanical, Lubrication, Cooling, Control Systems (DME), Fuel Injection, Emission Systems, Timing Chain, Turbocharger (M3 specific) Transmission: Manual and Automatic Transmissions (SMG for M3), Clutch, Torque Converter, Gearbox Overhaul, Shifter Mechanisms Driveline: Front and Rear Axles, Driveshafts, CV Joints, Differential (including LSD for M3) Suspension: Front and Rear Suspension Components, Shock Absorbers, Springs, Control Arms, Bushings, Wheel Alignment Brakes: Hydraulic System, ABS, DSC, Brake Discs, Pads, Calipers, Parking Brake, Brake Booster Steering: Power Steering System, Steering Rack, Steering Column, Wheel Alignment Electrical: Wiring Diagrams, Starting System, Charging System, Lighting, Ignition, ECU Systems, Body Control Modules (BCM), Infotainment, SRS, DME, ABS/DSC Modules Body: Chassis and Body Construction, Exterior Panels, Doors, Hood, Trunk, Windows, Locks, Interior Trim, Seats, Sunroof, Instrument Panel, Safety Systems (SRS) HVAC: Air Conditioning System, Heater Core, Blower Motor, Climate Control Unit, Refrigerant System Procedures Included Maintenance: Scheduled Maintenance, Fluid Changes, Filter Replacements, Spark Plug Replacement, Belt Replacement, Inspections Repair: Engine Overhaul, Transmission Rebuild, Suspension Component Replacement, Brake System Repair, Electrical Component Diagnosis and Repair, Body Panel Repair, Interior Component Installation Troubleshooting: Diagnostic Procedures, Fault Code Interpretation, Symptom-Based Troubleshooting Guides Technical Data: Torque Specifications, Fluid Capacities, Electrical Schematics, Component Specifications, Measurement Data Technical Depth Depth: Comprehensive Factory Level - Covers basic maintenance to complete engine and transmission rebuilds, including diagnostics and electrical system repair. 📊 Manual Specifications File Format Format: PDF Print Quality Quality: High-resolution, printable Binding Type Type: N/A (Digital Download) Paper Type Type: N/A (Digital Download) ⚙️ Engine Specifications Primary Engine Engine Model: S54B32 (M3), M54B30 (330i/xi), M54B25 (325i/xi), M52TU (323i, 328i) Performance M3 Horsepower: 333 hp @ 7900 rpm M3 Torque: 262 lb-ft @ 4900 rpm 330I Horsepower: 225 hp @ 5900 rpm 330I Torque: 214 lb-ft @ 3500 rpm Fuel System System Type: Sequential Multi-Point Fuel Injection (SMPI) Fuel Type: Premium Unleaded Gasoline (91 Octane or higher) 🔧 Transmission Standard M3 Transmission: 6-speed Manual Getrag 420G Optional M3 Transmission Optional: 6-speed SMG-II (Sequential Manual Gearbox) Non M3 Transmission: 5-speed Manual (Getrag 250G), 5-speed Automatic (Steptronic) Features Clutch Type: Hydraulically Actuated Single Dry Plate Clutch 📐 Dimensions Exterior Wheelbase: Approx. 107.4 inches (2728 mm) - varies slightly by body style Length: Approx. 177.5 inches (4509 mm) - varies slightly by body style Width: Approx. 70.1 inches (1781 mm) - varies slightly by body style Height: Approx. 54.1 inches (1374 mm) for Coupe/Convertible, higher for Sedan/Wagon Weights Curb Weight M3: Approx. 3,483 lbs (1579 kg) Curb Weight 330I: Approx. 3,384 lbs (1535 kg) 🛡️ Safety Features Ratings IIHS Ratings: Generally good for its era, specific ratings vary by year and body style. Active Features Active Safety: Anti-lock Braking System (ABS), Dynamic Stability Control (DSC), Traction Control System (ASC+T) Passive Features Passive Safety: Front Airbags, Side Airbags, Front Seatbelt Pretensioners, Optional Head Protection System (HPS) 💡 Technology Features Infotainment Infotainment System: BMW Professional Radio/Cassette or optional CD player with Navigation system (CCC or MK4). Driver Assistance Assistance Features: Cruise Control, Parking Sensors (optional), Rain-sensing wipers (optional), Xenon headlights (optional) Connectivity Connectivity: Onboard computer, optional Bluetooth hands-free system. 🔧 Maintenance Service Intervals Oil Change Interval: Typically every 7,500-10,000 miles (12,000-16,000 km) or as indicated by the Condition Based Service (CBS) system. Spark Plug Replacement: Around 60,000-100,000 miles (96,000-160,000 km), depending on plug type and driving conditions. Fluid Specifications Engine Oil M54: SAE 0W-40 or 5W-30, meeting BMW LL-01 or LL-04 specifications. Engine Oil S54: SAE 5W-30 or 10W-60 (BMW recommends Castrol TWS Motorsport 10W-60 for the S54 engine), meeting BMW LL-01 or LL-04 specifications. Coolant: BMW Blue Antifreeze/Coolant (G48 specification) mixed with distilled water at a 50/50 ratio. Transmission Fluid Manual: MTF LT-2 or equivalent. Transmission Fluid Automatic: ATF LT 71141 or ZF Lifeguardfluid 5. Differential Fluid: SAE 75W-90 synthetic gear oil (BMW Gls-4 or Gls-5 specification). For M3 with LSD, specific LSD...