🏷️ Basic Information Identification Make: Mercedes-Benz Model: C300 Year: 2009 Codes Chassis Code: W204 👋 Introduction Market Position Segment: Compact Executive Sedan Brand Perception: Premium, luxury, performance, advanced technology Competitive Analysis Key Competitors: BMW 3 Series, Audi A4, Lexus IS, Infiniti G35/G37 Key Features Design: Modern styling, refined interior, hallmark Mercedes-Benz build quality. Performance: Smooth V6 power delivery, comfortable yet engaging ride. Technology: Advanced infotainment options (COMAND), driver assistance systems. Manual Value Proposition Benefit: Empowers owners and technicians with official, detailed information for accurate diagnosis and repair, reducing labor costs and ensuring proper maintenance. 📋 Manual Details Coverage Areas Engine Coverage: 3.0L V6 (M272) Transmission Coverage: 7G-TRONIC 7-Speed Automatic Major Systems Coverage: Engine, Transmission, Drivetrain, Brakes, Suspension, Steering, Electrical, HVAC, Bodywork, Interior, Safety Systems, Diagnostics Page Count Estimated Page Count: 1500+ Manual Type Type: Official Service and Repair Manual Software Language Language: English Format Format: Software/Digital (likely PDF or proprietary executable) 📖 Manual Coverage Systems Covered Engine Mechanical: Complete overhaul procedures, component testing, timing, valve adjustment, cooling system, lubrication system. Engine Electrical: ECU diagnostics, sensor testing (MAF, O2, crankshaft, camshaft), ignition system, fuel injection system. Transmission Automatic: Diagnosis, fluid service, valve body testing, torque converter, electronic control unit (TCU). Drivetrain: Front/rear differential, axles, driveshafts, CV joints, AWD system (if applicable). Brakes: ABS, ESP, brake fluid service, caliper/rotor replacement, hydraulic system diagnosis. Suspension: Struts, shock absorbers, control arms, bushings, wheel alignment specifications. Steering: Power steering system, steering rack, tie rods, steering column. Electrical Body: Lighting systems, power windows, mirrors, locks, wipers, horn, body control module (BCM). HVAC: Compressor, evaporator, condenser, blower motor, climate control module, refrigerant handling. Safety Restraint System: Airbag system diagnosis, SRS module, seatbelt mechanisms. Procedures Included Maintenance: Oil changes, filter replacements, spark plug replacement, fluid checks and top-offs, belt inspection/replacement. Diagnostics: Troubleshooting guides, fault code interpretation (OBD-II), component testing procedures, wiring diagrams. Repair: Detailed step-by-step instructions for component removal, installation, and overhaul of all major systems. Adjustment: Wheel alignment, steering column adjustments, headlight aim. Calibration: Throttle body calibration, steering angle sensor calibration, tire pressure monitoring system (TPMS) relearn. Special Tools: Identification and usage of Mercedes-Benz specific tools required for various procedures. Technical Depth Depth: Comprehensive, covering basic maintenance to complete engine and transmission rebuilds, including electrical troubleshooting and module programming guidance. 📊 Manual Specifications File Format File Type: Software Application (likely requires installation and possibly a license key) Searchability: High (text-searchable content within the software interface) Print Quality Print Capability: Printable sections (user-configurable) Binding Type Binding: N/A (Digital Software) Paper Type Paper: N/A (Digital Software) ⚙️ Engine Specifications Primary Engine Engine Code: M272.9XX Engine Type: Naturally Aspirated V6 Displacement: 2997 cc (3.0 Liters) Bore X Stroke: 88 mm x 82 mm Compression Ratio: 10.7:1 Performance Horsepower: 228 hp @ 6000 rpm Torque: 221 lb-ft @ 2500-5000 rpm Fuel System Fuel Delivery: Sequential Multi-Port Fuel Injection (MPI) Fuel Type: Premium Unleaded Gasoline (91+ Octane Recommended) Engine Management Engine Control Unit: ME 9.7 (Siemens) 🔧 Transmission Standard Transmission Type: 722.6 (7G-TRONIC) Gears: 7-Speed Automatic Drive Type: Rear-Wheel Drive (RWD) / 4MATIC All-Wheel Drive (AWD) Features Shifting Modes: Comfort (C), Sport (S), Manual (M) Fluid Specifications Transmission Fluid Type: MB Spec 236.14 (e.g., Pentosin ATF134) Fluid Capacity Transmission Fluid Capacity: Approx. 7.5 - 9.0 Liters (dry fill, varies with torque converter drain) 📐 Dimensions Exterior Length: 180.7 inches (4590 mm) Width: 70.9 inches (1801 mm) Height: 56.3 inches (1430 mm) Wheelbase: 108.7 inches (2760 mm) Weights Curb Weight Rwd: Approx. 3450 lbs (1565 kg) Curb Weight AWD: Approx. 3570 lbs (1619 kg) 🛡️ Safety Features Ratings NHTSA Front Crash Rating: 5 Stars NHTSA Side Crash Rating: 5 Stars IIHS Top Safety Pick: Yes Active Features Stability Control: Standard Electronic Stability Program (ESP) Traction Control: Standard Traction Control System (TCS) Braking System: Anti-lock Braking System (ABS), Brake Assist (BAS) Passive Features Airbags: Dual front, front side-impact, front and rear head curtain airbags. 💡 Technology Features Infotainment System Name: COMAND APS (optional) Features: Navigation, AM/FM/CD/MP3, auxiliary input, Bluetooth connectivity (optional). Driver Assistance Pre Safe System: Predictive occupant protection system that prepares the vehicle for a potential collision. Adaptive Cruise Control: DISTRONIC PLUS (optional, functionality varies) Parking Assistance: PARKTRONIC (optional front and rear parking sensors) Connectivity Telematics: Mercedes-Benz Tele Aid (emergency calling and assistance, subscription-based) 🔧 Maintenance Service Intervals Oil Change Interval: Typically every 10,000 miles or 12 months (whichever comes first), depending on driving conditions and specific Mercedes-Benz recommendations. Major Service A: Approx. 10,000 miles: Synthetic oil and filter change, tire rotation, comprehensive inspection. Major Service B: Approx. 20,000 miles: Includes Service A items plus cabin air filter replacement, brake system inspection, suspension component check. Transmission Fluid Service: Recommended around 60,000 - 80,000 miles or per manufacturer's specific service schedule. Fluid Specifications Engine Oil Type: SAE 0W-40 or 5W-40 Synthetic, MB-Approval 229.5 Engine Oil Capacity: 8.5 US quarts (8.0 Liters) Coolant Type: Mercedes-Benz...