🏷️ Basic Information Identification Make: Mercedes-Benz Model: C320 Year: 2002 Codes Chassis Code: W203 Engine Code: M112 E32 👋 Introduction Market Position Positioning: Premium Compact Executive Sedan, competing with BMW 3 Series, Audi A4, Lexus IS. Competitive Analysis Competitors 2002: BMW 330i (E46), Audi A4 3.0 quattro (B6), Lexus IS300, Cadillac CTS. Key Features Vehicle Features: Smooth V6 power, refined interior, advanced safety features, comfortable ride, Mercedes-Benz prestige. Manual Value Target Audience: DIY enthusiasts, independent repair shops, Mercedes-Benz owners seeking in-depth repair knowledge. 📋 Manual Details Coverage Areas Primary Coverage: Service, Repair, Diagnostics, Troubleshooting Secondary Coverage: Maintenance, Electrical Systems, Bodywork, Specifications Page Count Estimated Pages: 1000+ Manual Type Type: Factory Service Manual (FSM) / Digital Repair Manual Language Language: English Format Format: Software/Digital (likely PDF or proprietary viewer) 📖 Manual Coverage Systems Covered Powertrain: Engine (M112 E32), Fuel System, Ignition System, Exhaust System, Transmission (722.6 5G-Tronic Automatic) Chassis: Suspension (Front & Rear), Steering, Brakes (ABS, ESP), Wheels & Tires Electrical: Engine Control Module (ECM), Body Control Module (BCM), Lighting, Instrumentation, HVAC Controls, Power Accessories, CAN Bus Communication Body: Exterior Body Panels, Interior Trim, Doors, Glass, Seats, Safety Restraints (Airbags, Seatbelts) Procedures Included Routine Maintenance: Oil Change, Filter Replacements (Oil, Air, Fuel, Cabin), Spark Plug Replacement, Coolant Flush, Brake Fluid Flush Major Repairs: Engine Rebuild, Transmission Overhaul, Suspension Component Replacement, Brake System Repair, Steering System Repair, Electrical Component Diagnosis and Replacement Diagnostics: OBD-II Diagnostics, Diagnostic Trouble Code (DTC) Interpretation, Symptom-Based Troubleshooting, Component Testing Specifications And Data: Torque Specifications, Fluid Capacities and Types, Component Tolerances, Wiring Diagrams, Vacuum Diagrams Technical Depth Depth: Comprehensive: Covers everything from basic maintenance to complete overhaul and advanced diagnostics, including wiring diagrams and schematics. 📊 Manual Specifications File Format File Type: Software/Digital (Likely proprietary application or searchable PDF) Print Quality Quality: High Resolution, Searchable Text, Printable Pages (dependent on software functionality) Binding Type Binding: Not Applicable (Digital Format) Paper Type Paper: Not Applicable (Digital Format) ⚙️ Engine Specifications Primary Engine Engine Type: Naturally Aspirated V6, SOHC (Single Overhead Camshaft) with 3 valves per cylinder Engine Code: M112 E32 Displacement: 3.2 Liters (3199 cc) Performance Horsepower: 215 hp @ 5750 rpm Torque: 229 lb-ft @ 3000-4500 rpm Fuel System Fuel Delivery: Sequential Multi-Port Fuel Injection (MPI) Recommended Fuel: Premium Unleaded Gasoline (91 octane or higher) Cooling System Coolant Type: Mercedes-Benz approved Glycol/Silicate free coolant (e.g., G05 or equivalent) Lubrication System Oil Type: SAE 0W-40 (API SM or higher, MB 229.5 specification) Ignition System Spark Plugs: Platinum or Iridium tipped (e.g., NGK PFR5G-11 or Bosch FGR5-N10G) 🔧 Transmission Standard Transmission Type: 5-Speed Automatic (722.6 / NAG1) Optional Optional Transmission: None offered for C320 in 2002. Features Transmission Features: TouchShift (manual shifting mode), Comfort and Sport modes, Electronic control unit (TCU). Fluid Specifications Automatic Transmission Fluid: Dexron III/Mercon compatible or MB Approved ATF (e.g., MB 236.10 or MB 236.12) 📐 Dimensions Exterior Length: 177.0 inches Width: 67.7 inches Height: 55.7 inches Wheelbase: 106.7 inches Weights Curb Weight: 3400 - 3500 lbs (approx.) Gross Vehicle Weight Rating: 4400 lbs (approx.) Cargo Trunk Capacity: 13.1 cubic feet Wheels And Tires Standard Wheel Size: 16 inch alloy Optional Wheel Size: 17 inch alloy Standard Tire Size: 205/55R16 Optional Tire Size: 225/45R17 Bolt Pattern: 5 x 112 mm 🛡️ Safety Features Ratings NHTSA Front Impact Rating: 5-Star (Driver), 4-Star (Passenger) IIHS Side Impact Rating: Good Active Features Electronic Stability Program: Standard (ESP) Antilock Braking System: Standard (ABS) Traction Control System: Standard (ASR) Passive Features Airbags: Frontal airbags, Side airbags, Window airbags (optional on some trims). Seatbelts: Front seatbelt pretensioners and load limiters, Rear 3-point seatbelts. Body Structure: High-strength steel safety cage, crumple zones. 💡 Technology Features Infotainment Infotainment System: COMAND (Cockpit Management and Navigation Display) audio and navigation system, optional CD changer. Driver Assistance Driver Assistance Features: Rain-sensing wipers, Automatic climate control, Cruise control, Optional Xenon headlights with cornering function. Connectivity Connectivity Options: Optional Tele Aid (emergency services), Optional CD changer. Lighting Headlight Technology: Halogen projector headlights standard, optional Xenon HID headlights with auto-leveling and cornering. 🔧 Maintenance Service Intervals Oil Change Interval: Every 10,000 miles or 1 year (whichever comes first), using the specified synthetic oil. Flex service system ('Service A' and 'Service B' indicators). Transmission Fluid Service: Recommended every 60,000 miles, though some sources suggest earlier for longevity, especially with heavy use. Refer to manual for specific interval and procedure. Spark Plug Replacement: Typically around 100,000 miles for platinum/iridium plugs. Coolant Flush: Every 30,000 miles or 2 years. Fluid Specifications Brake Fluid Type: DOT 4 (MB Approved) Power Steering Fluid: MB approved hydraulic fluid (e.g., CHF 11S or equivalent, check specific reservoir) Known Issues Common Wear Items: Ignition coils, Mass Airflow Sensor (MAF), PCV valve, Drive belt tensioner, Crankshaft position sensor, ABS wheel speed sensors, Rear main seal oil leaks, Sunroof drains clogging. Transmission Issues: Mechatronic unit issues in the 722.6 transmission...