🏷️ Basic Information Identification Make: BMW Model: 3-series Chassis Code: E46 Model Year: 2001 Codes Engine Codes Covered: M52TU B25, M52TU B28, M54 B22, M54 B25, M54 B30, S54 B32 (M3) Transmission Codes Covered: GS5-39DZ (5-speed manual), S5D 250G (5-speed manual), GM A4S 310R (5-speed automatic), GM A5S 325Z (5-speed automatic), ZF GS6-37BG (6-speed manual) 👋 Introduction Market Position Segment: Compact Executive Sedan/Coupe/Convertible/Wagon Reputation: Renowned for driving dynamics, build quality, and sophisticated engineering Competitive Analysis Competitors 2001: Mercedes-Benz C-Class (W203), Audi A4 (B6), Lexus IS300, Infiniti G35 (introduced later) Key Features Driving Dynamics: Near 50/50 weight distribution, sophisticated multi-link rear suspension, precise steering Powertrain: Inline-6 engines known for smoothness and power delivery, robust manual and automatic transmissions Build Quality: High-quality materials, excellent fit and finish 📋 Manual Details Coverage Areas Manual Type: Service and Repair Manual Language: English Format: Likely Digital (PDF or similar), intended for professional use Pages: Estimated 1000+ pages (typical for comprehensive dealer-level manuals of this era) 📖 Manual Coverage Systems Covered Engine: Complete overhaul, tuning, diagnostics, cooling system, lubrication system, fuel system, exhaust system, emissions control Transmission: Manual and automatic transmission repair, clutch replacement, driveshaft, differential, axle shafts, fluid service Suspension: Front and rear suspension components, shock absorbers, springs, bushings, steering system, wheel alignment Brakes: Brake system diagnostics, disc brake overhaul, ABS system, parking brake Electrical: Wiring diagrams, charging system, starting system, ignition system, lighting, instrument cluster, power windows, central locking, HVAC controls, ECU diagnostics Bodywork: Body panel removal and installation, door mechanisms, glass, exterior trim, interior trim, sound insulation Climate Control: HVAC system diagnostics, refrigerant service, blower motor, climate control modules Procedures Included Maintenance: Routine oil changes, filter replacements, spark plug replacement, brake fluid flush, coolant flush, belt replacement, diagnostic checks Troubleshooting: Diagnostic fault code lookup, symptom-based troubleshooting, step-by-step diagnostic procedures Repair: Component removal, installation, adjustment, and overhaul for all covered systems Installation: Includes procedures for replacing major components and systems Technical Depth Depth: Dealer-level, comprehensive, suitable for professional technicians and advanced DIY enthusiasts Specificity: Vehicle-specific, not generic; covers all models and trims within the E46 generation for 2001 📊 Manual Specifications File Format File Type: Likely PDF, optimized for digital viewing and printing Searchability: Text-searchable for quick access to information Print Quality Layout: Clear, concise layout with diagrams and illustrations Binding Type Binding: If physical, typically professionally bound for durability (e.g., spiral-bound, perfect bound) Paper Type Paper: If physical, high-quality, durable paper to withstand workshop use ⚙️ Engine Specifications Primary Engine Engine Variants: 2.0L I6 (M52TU B20 - not explicitly mentioned but common), 2.5L I6 (M52TU B25, M54 B25), 2.8L I6 (M52TU B28), 3.0L I6 (M54 B30), 3.2L I6 (S54 B32 - M3) Performance 2.5L (M54 B25) Horsepower: 189 hp @ 6000 rpm 2.5L (M54 B25) Torque: 181 lb-ft @ 3500 rpm 3.0L (M54 B30) Horsepower: 225 hp @ 6100 rpm 3.0L (M54 B30) Torque: 214 lb-ft @ 3500 rpm 3.2L (S54 B32 - M3) Horsepower: 333 hp @ 7400 rpm 3.2L (S54 B32 - M3) Torque: 262 lb-ft @ 4900 rpm Fuel System Fuel Delivery: Sequential multiport fuel injection (SMPI) Fuel Type: Premium Unleaded (91+ Octane) Technical Details Valvetrain: Double Overhead Camshafts (DOHC), 4 valves per cylinder, VANOS (Variable Valve Timing) 🔧 Transmission Standard Standard Transmission All Models: 5-speed Manual (may vary by specific model variant, e.g., 6-speed for M3) Optional Optional Transmission: 5-speed Automatic (Steptronic optional on some models) Features Transmission Features: Close-ratio gearing, smooth shifts, robust construction Fluid Specs Manual Transmission Fluid Spec: BMW MTF LT-2 or equivalent (e.g., Castrol Syntrans B 75W-80) Automatic Transmission Fluid Spec: BMW ATF LT 71141 or equivalent (e.g., ZF Lifeguardfluid 5) Differential Fluid Spec Differential Fluid: BMW Hypoid Gear Oil G2 or equivalent SAE 75W-90 📐 Dimensions Exterior Wheelbase: 107.4 inches (2728 mm) Length: Approx. 177.4 - 180.4 inches (4495 - 4582 mm), depending on body style (Sedan, Coupe, Convertible, Sport Wagon) Width: Approx. 68.9 inches (1750 mm) Height: Approx. 55.2 - 56.7 inches (1402 - 1440 mm), depending on body style Weights Curb Weight Range: Approx. 3100 - 3500 lbs (1406 - 1588 kg), depending on model and equipment Gross Vehicle Weight Rating: Varies by model, consult specific vehicle VIN Wheels Tires Wheel Bolt Pattern: 5x120 mm Wheel Size Range: 15-inch, 16-inch, 17-inch, 18-inch (M3) Tire Size Range: 205/55R16, 225/45R17, 245/40R18 (M3) 🛡️ Safety Features Ratings NHTSA Front Impact Rating: 4 Stars (for Sedan and Wagon, as per contemporary NHTSA data) IIHS Side Impact Rating: Good (for models tested) Active Features Active Safety Features: ABS (Anti-lock Braking System), ASC+T (Automatic Stability Control and Traction), DSC (Dynamic Stability Control - optional/standard on higher trims) Passive Features Passive Safety Features: Front airbags, front side-impact airbags, front and rear head protection system (HPS) curtain airbags (optional/standard on higher trims), crumple zones, energy-absorbing steering column 💡 Technology Features Infotainment Infotainment Systems: Optional BMW Business CD, BMW Professional CD,...