🏷️ Basic Information Identification Make: Mercedes-Benz Model: S-Class Model Code: W220 Year: 2004 Codes Chassis Code: W220 Generation Generation Name: Third Generation S-Class Generation Years: 1998-2005 👋 Introduction Market Position Segment: Full-size Luxury Sedan Competitors 2004: BMW 7 Series (E65/E66), Audi A8 (D3), Lexus LS 430, Jaguar XJ, Porsche Panamera (later) Target Audience: Affluent consumers seeking high levels of comfort, technology, and prestige. Competitive Analysis W220 Strengths: Advanced technology (ABC, Distronic, SBC), refined ride quality, superior interior materials, strong brand heritage. W220 Weaknesses: Complex electronics leading to potential repair costs, some initial reliability concerns with early models. Key Features Flagship Status: Represents the pinnacle of Mercedes-Benz engineering and luxury. Design Philosophy: Elegant, understated styling with a focus on aerodynamic efficiency and sophisticated interior design. Technology Introduction: Pioneered technologies like Active Body Control (ABC) and Sensotronic Brake Control (SBC) in mass production. 📋 Manual Details Coverage Areas All Models Covered: Yes Repair Scope: A-Z (All Repairs) Vehicle Specificity: Vehicle Specific (Not Generic) Technician Use: Official Dealership Technician Manual Page Count Estimated Page Count: Refer to actual manual for precise count (typically 2000+ pages for comprehensive W220 service manuals) Manual Type Type: Service and Repair Manual Language Language: English Format Format: Likely Digital (PDF), though physical copies exist 📖 Manual Coverage Systems Covered Engine Mechanical: Complete overhaul, assembly, disassembly, component testing, specifications Engine Management: Fuel injection, ignition, emissions control, ECU diagnostics, sensors, actuators Transmission Automatic: 722.6 (5-Speed Automatic) overhaul, service, diagnostics, control module Drivetrain: Axles, driveshafts, differentials, wheel bearings, CV joints Suspension: ABC (Active Body Control) system, airmatic suspension, struts, shocks, control arms, bushings, links Steering: Power steering system, steering rack, tie rods, steering column Brakes: Hydraulic system, ABS, ESP, SBC (Sensotronic Brake Control), brake pads, rotors, calipers, lines, bleeding procedures Electrical System: 12V system, alternator, battery, starter, wiring diagrams, fuses, relays Body Control Module: BCM, CAN bus system, diagnostics, component location Lighting: Headlights (including Xenon/Bi-Xenon), taillights, interior lighting, control modules Climate Control: Automatic climate control (THERMATIC/THERMOTRONIC), HVAC system, A/C compressor, refrigerant, blower motor, actuators Comfort Systems: Power seats, memory seats, heated/ventilated seats, power windows, sunroof, door locks, soft-close doors, trunk automation Infotainment Audio: COMAND system, radio, navigation, CD changer, speaker system, telematics Safety Systems: Airbags, seatbelt pre-tensioners, SRS module, seat occupancy sensors Driver Assistance: Distronic (adaptive cruise control), PARKTRONIC (parking sensors), rain sensor, light sensor Procedures Included Routine Maintenance: Oil changes, filter replacements, fluid checks and top-offs, spark plug replacement, belt inspection Troubleshooting: Diagnostic trouble codes (DTCs), symptom-based troubleshooting, component testing procedures Component Replacement: Detailed step-by-step instructions for replacing all major and minor components Major Overhaul: Engine and transmission rebuild procedures Diagnostic Procedures: Use of diagnostic tools (e.g., STAR DAS), reading live data, actuator tests Calibration Procedures: SBC calibration, suspension calibration, steering angle sensor calibration Bodywork Repair: Panel removal and installation, dent repair, paint refinishing guidelines Wiring Diagrams: Comprehensive, color-coded wiring schematics for all systems Technical Depth Depth: Comprehensive: From basic fluid checks to complete engine and transmission rebuilds, including advanced electronic diagnostics. Diagnostic Tools: References and procedures for using Mercedes-Benz proprietary diagnostic equipment (e.g., STAR DAS). Torque Specifications: Detailed torque values for all fasteners. Clearances And Tolerances: Precise measurements for component clearances and wear limits. Special Tools: Identification and usage of specialized Mercedes-Benz tools required for specific procedures. 📊 Manual Specifications File Format Format: Digital (PDF) is common, allowing for searchability and easy navigation. Physical printed manuals also exist. Searchability: High (if PDF with text recognition) Print Quality Print Quality: High (for official manuals, clear diagrams and text) Binding Type Binding Type: N/A for digital. For physical: Typically spiral-bound or comb-bound for ease of use on a workbench. Paper Type Paper Type: N/A for digital. For physical: High-quality, durable paper suitable for workshop environments. ⚙️ Engine Specifications Primary Engine Engine Family: Mercedes-Benz M112 (V6) and M113 (V8) families Engine 2004 Options: S350 (3.7L V6), S430 (4.3L V8), S500 (5.0L V8), S55 AMG (5.4L V8 Supercharged), S600 (5.5L V12 Twin-Turbocharged) Engine Displacement S430: 4266 cc Engine Displacement S500: 4966 cc Engine Displacement S55 Amg: 5439 cc Engine Displacement S600: 5513 cc Performance Horsepower S430: 275 hp @ 6000 rpm Torque S430: 295 lb-ft @ 3250 rpm Horsepower S500: 302 hp @ 6100 rpm Torque S500: 339 lb-ft @ 3250 rpm Horsepower S55 Amg: 493 hp @ 6100 rpm Torque S55 Amg: 516 lb-ft @ 2750-4000 rpm Horsepower S600: 493 hp @ 5000 rpm Torque S600: 590 lb-ft @ 1800-3500 rpm Fuel System Fuel Type: Premium Unleaded Gasoline (91+ octane recommended) Injection System: Electronic Fuel Injection (EFI) Forced Induction: Supercharger (S55 AMG), Twin-Turbochargers (S600) 🔧 Transmission Standard Transmission Type: 5-Speed Automatic (722.6 '7G-TRONIC' predecessor) Optional Optional Transmission: N/A for 2004 model year; 7G-TRONIC introduced later in W220 lifecycle. Features Shift Modes: Comfort (C) and Sport (S) modes Transmission Fluid Spec: MB 236.10 (e.g., Pentosin ATF1, Mobil ATF 134) 📐 Dimensions Exterior Length:...