🏷️ Basic Information Identification Make: BMW Model: 3 Series Codes Chassis Codes Covered: E46 (Sedan: E46/4, Coupe: E46/2, Convertible: E46/2C, Sportwagon/Touring: E46/3) 👋 Introduction Market Position Vehicle Segment: Compact Executive / Premium Compact Competitive Analysis Key Competitors: Audi A4, Mercedes-Benz C-Class, Lexus IS, Acura TL, Infiniti G35 Key Features Driving Dynamics: Renowned for its sporty handling, balanced chassis (near 50/50 weight distribution), rear-wheel-drive bias, and engaging driving experience 📋 Manual Details Coverage Areas Vehicle Body Styles: Sedan, Coupe, Convertible, Sportwagon (Touring) Page Count Estimated Page Count: 1500-2500 (typical for comprehensive workshop manuals of this era) Manual Type Manual Classification: Service and Repair Workshop Manual Language Language Offered: English Format Digital Format: Downloadable (likely PDF) 📖 Manual Coverage Systems Covered Engine Systems: Engine mechanicals (assembly, disassembly, tuning), cooling system, lubrication system, fuel injection (Bosch Motronic/Siemens DME), ignition system, exhaust system, emission controls Drivetrain Systems: Manual transmission, automatic transmission (GM 5L40-E, ZF 5HP19), clutch, driveshafts, differentials, axles, AWD (xDrive) systems Chassis Systems: Suspension (front McPherson strut, rear multi-link), steering (power assisted), brakes (front vented discs, rear discs, ABS, DSC), wheel alignment Electrical Systems: Wiring diagrams, battery, charging system (alternator), starter, lighting, instrument cluster, comfort electronics (windows, locks, mirrors, seats), climate control, SRS (airbag) system, diagnostic connectors (OBD-II) Procedures Included Maintenance Procedures: Oil change, filter replacement, spark plug replacement, coolant flush, brake fluid flush, belt replacement, air filter replacement, cabin filter replacement Repair Procedures: Engine rebuild, cylinder head service, transmission overhaul, clutch replacement, brake caliper overhaul, suspension component replacement, steering rack replacement, power steering pump replacement, starter/alternator replacement Diagnostics Troubleshooting: Fault code reading and interpretation, symptom-based troubleshooting guides, component testing procedures, electrical circuit diagnostics Technical Depth Diagnostic Capability: Advanced diagnostics with torque specifications, pressure readings, resistance values, and diagnostic trouble codes (DTCs) Rebuild Capability: Complete engine and transmission rebuild procedures, including clearances, torque sequences, and special tool requirements 📊 Manual Specifications File Format Digital File Type: PDF (Portable Document Format) Print Quality Digital Document Quality: High-resolution scans of original factory documentation, optimized for readability and searchability Binding Type Physical Manual Binding: N/A (Digital Download) Paper Type Physical Manual Paper: N/A (Digital Download) ⚙️ Engine Specifications Primary Engine Engine Lineup Overview: Inline-4 and Inline-6 gasoline engines, Inline-4 diesel engines (Europe) Inline 4 Gasoline Engines: 2.0L (M43TU, N42, N46) and 2.5L (M54B25, N52 - latter post-2005 for some markets) Inline 6 Gasoline Engines: 2.5L (M54B25), 2.8L (M54B28), 3.0L (M54B30), 3.2L (S54 - M3 model) Performance Typical Horsepower Range: 125 hp (2.0L diesel) to 333 hp (M3 3.2L S54) Typical Torque Range: 180 Nm (2.0L diesel) to 350 Nm (M3 3.2L S54) Fuel System Fuel Delivery: Multi-point fuel injection (MPI) with Bosch Motronic or Siemens DME engine management systems 🔧 Transmission Standard Base Transmission: 5-speed Manual Transmission (Getrag 250) Optional Optional Transmission: 5-speed Steptronic Automatic Transmission (GM 5L40-E, ZF 5HP19) Features Rear Axle Ratios: Varies by model and engine (e.g., 3.07, 3.46, 3.64) 📐 Dimensions Exterior Wheelbase: Approx. 2760 mm (108.7 in) for Sedan/Coupe/Convertible, 2731 mm (107.5 in) for Sportwagon Overall Length: Approx. 4471 mm (176.0 in) for Sedan, 4492 mm (176.8 in) for Coupe, 4488 mm (176.7 in) for Convertible, 4473 mm (176.1 in) for Sportwagon Weights Curb Weight Range: Approx. 1350 kg to 1700 kg (depending on body style, engine, and options) 🛡️ Safety Features Ratings IIHS Ratings: Generally Good in frontal offset tests, varying side impact ratings Active Features Active Safety Systems: Anti-lock Braking System (ABS), Dynamic Stability Control (DSC) standard on most models, Traction Control System (TCS) Passive Features Passive Safety Features: Front airbags, side airbags, optional head curtain airbags, seatbelt pre-tensioners 💡 Technology Features Infotainment Infotainment Systems: BMW Professional Radio, optional CD changer, optional navigation system (MKIV unit), optional Harman Kardon audio system Driver Assistance Driver Assistance Features: Cruise control, parking sensors (rear optional), rain-sensing wipers, automatic climate control Connectivity Connectivity Options: BMW Assist (telematics system, varying availability by region/year), optional Bluetooth hands-free connectivity 🔧 Maintenance Service Intervals Oil Change Interval: Typically 10,000-15,000 miles or 12-24 months, depending on oil type and driving conditions (as per Condition Based Service - CBS) Inspect Brake Pads Rotors: Every 15,000 - 20,000 miles or as indicated by CBS Replace Cabin Air Filter: Every 15,000 - 30,000 miles or 12-24 months Replace Spark Plugs: Approximately 60,000 miles for iridium plugs, 100,000 miles for platinum plugs (depending on engine) Fluid Specifications Engine Oil Spec: BMW Longlife-01 (LL-01) or Longlife-04 (LL-04) synthetic oil, viscosity typically 0W-30, 5W-30, or 5W-40 depending on climate and engine Coolant Spec: BMW Blue Antifreeze/Coolant (G48 ethylene glycol based) diluted with distilled water (50/50 mix) Brake Fluid Spec: DOT 4 (or DOT 4 Plus) Transmission Fluid Manual: MTF LT-2 (Manual Transmission Fluid) Transmission Fluid Automatic: Esso LT 71141 or equivalent (e.g., Pentosin ATF 31) Known Issues Common Problems Engine: Oil leaks (valve cover gasket, oil pan gasket), CCV (Crankcase Ventilation) system failure leading...