🏷️ Basic Information Identification Make: Mercedes-Benz Model: C320 Year: 2004 Codes Chassis Code: W203 Engine Code: M112 E32 👋 Introduction Market Position Vehicle Class: Compact Executive Sedan/Coupe (C-Class) Target Audience: Consumers seeking luxury, comfort, performance, and advanced engineering in a mid-size vehicle. Competitive Analysis Key Competitors: BMW 3 Series (E46), Audi A4 (B6), Lexus IS300, Acura TL. Key Features Brand Philosophy: Emphasizes safety, build quality, comfort, and sophisticated engineering. Model Attributes: Refined interior, strong V6 engine performance, sophisticated chassis dynamics, and a reputation for durability. Manual Value Proposition: Provides the official, in-depth technical information necessary for accurate diagnosis and repair, ensuring the longevity and optimal performance of the vehicle. 📋 Manual Details Coverage Areas Manual Type: Service and Repair Manual Software Language: English Format: Digital Software (likely PDF or similar searchable format based on description) Page Count Estimated Page Count: Extensive (typically over 1000 pages for full factory service manuals, though software format may vary) 📖 Manual Coverage Systems Covered Engine: 3.2L V6 (M112 E32), including maintenance, diagnosis, disassembly, assembly, and troubleshooting. Transmission: 5-Speed Automatic Transmission (722.6), including operation, diagnostics, fluid service, and repair procedures. Drivetrain: Rear-wheel drive (RWD) system, including driveshaft, differential, and axle components. Suspension: Front and rear suspension components, including struts, shocks, control arms, bushings, and alignment procedures. Brakes: Hydraulic brake system (front and rear discs), including ABS, ESP, brake pad replacement, rotor resurfacing/replacement, and bleeding procedures. Steering: Power-assisted steering system, including steering rack, pump, hoses, and fluid service. Electrical: Comprehensive coverage of the vehicle's electrical system, including battery, charging system, starter, lighting, fuses, relays, wiring diagrams, and ECU functions. HVAC: Heating, Ventilation, and Air Conditioning system, including diagnosis of refrigerant leaks, component replacement, and operational checks. Body: Exterior and interior body panels, doors, latches, windows, mirrors, and basic body repair information. Interior: Seats, dashboard, interior trim, airbags, and seatbelt systems. Diagnostic Troubleshooting: Extensive diagnostic procedures for identifying and resolving common and uncommon issues using factory tools and methods. Procedures Included Routine Maintenance: Oil changes, filter replacements (oil, air, cabin), fluid checks and top-offs, spark plug replacement, and general inspections. Engine Repair: Head gasket replacement, timing chain service, piston and connecting rod service, valve adjustment (if applicable), and more complex engine rebuilds. Transmission Service: Fluid and filter changes, torque converter service, and internal transmission component repair. Brake System Repair: Calipers, rotors, brake lines, master cylinder, and ABS/ESP module replacement and repair. Electrical Diagnostics: Component testing, wiring harness repair, sensor diagnosis, and ECU programming guidance. Suspension And Steering Repair: Replacement of struts, shocks, ball joints, tie rod ends, and steering rack overhaul. HVAC System Repair: Compressor replacement, condenser service, evaporator diagnosis, and refrigerant handling. Bodywork And Trim: Door panel removal, bumper replacement, and alignment of body panels. Troubleshooting Guides: Step-by-step guides to diagnose and fix specific symptoms (e.g., starting issues, performance problems, warning lights). Technical Depth Depth Level: Comprehensive factory-level detail, suitable for professional technicians and advanced DIY enthusiasts. Diagnostic Tools: Information on using Mercedes-Benz proprietary diagnostic tools (e.g., STAR Diagnosis) and general OBD-II scanners. Torque Specifications: Precise torque values for all critical fasteners and components. Wiring Diagrams: Detailed, system-specific electrical wiring schematics. Special Tools: Identification and usage instructions for Mercedes-Benz specific tools required for certain procedures. 📊 Manual Specifications File Format Digital Format: Likely a portable document format (PDF) or a proprietary software application designed for digital manuals. Searchable text is a common feature of such software. Print Quality Resolution: High-resolution, suitable for clear display of diagrams, schematics, and text. Allows for zooming into fine details. Binding Type Binding: N/A (Digital Software) Paper Type Paper Type: N/A (Digital Software) ⚙️ Engine Specifications Primary Engine Engine Type: V6, SOHC (Single Overhead Camshaft) with 3 valves per cylinder and 2 spark plugs per cylinder (M112 E32). Displacement: 3.2 Liters (3199 cc) Performance Horsepower: 215 hp @ 5750 rpm Torque: 229 lb-ft (310 Nm) @ 3250 rpm Fuel System Fuel Delivery: Sequential multi-port fuel injection (SFI) Fuel Type: Premium Unleaded Gasoline (91 Octane or higher recommended) Cooling System Cooling Type: Liquid-cooled, pressurized system Engine Management ECM Type: ME 2.8 (Motronic Electronic Engine Control) 🔧 Transmission Standard Transmission Type: 5-Speed Automatic Transmission (722.6) Optional Optional Transmission: None offered for C320 in 2004 Features Shift Modes: Comfort (C) and Sport (S) modes Torque Converter: Lock-up torque converter for improved fuel efficiency Fluid Specifications Transmission Fluid Type: MB 236.14 Automatic Transmission Fluid (ATF) - often referred to as 'ATF 4+' or 'ATF 134' by aftermarket suppliers. Correct fluid is critical. 📐 Dimensions Exterior Length: 178.5 inches (4534 mm) Width: 69.3 inches (1760 mm) Height: 55.7 inches (1415 mm) Wheelbase: 106.7 inches (2710 mm) Weights Curb Weight: Approximately 3505 lbs (1590 kg) 🛡️ Safety Features Ratings NHTSA Front Impact: 5 Stars NHTSA Side Impact: 5 Stars Active Features Electronic Stability Program: Standard (ESP - Electronic Stability Program) Anti Lock Brakes: Standard (ABS - Anti-lock...