🏷️ Basic Information Identification Make: Mercedes-Benz Model: G550 Year: 2009 👋 Introduction Market Position Vehicle Segment: Luxury SUV, Off-Road Vehicle Target Demographic: Affluent individuals and families seeking robust off-road capability combined with premium luxury and performance. Competitive Analysis Key Competitors 2009: Land Rover Range Rover, Lexus LX 570, Toyota Land Cruiser, Cadillac Escalade, BMW X5. Key Features Vehicle Off Road Capability: Renowned for its body-on-frame construction, solid rear axle, locking differentials, and robust suspension system providing exceptional off-road prowess. Luxury Appointments: Premium interior materials, advanced technology, comfortable seating, and a sophisticated ride quality for a luxury vehicle. Key Features Manual Official Licensing: Officially licensed Mercedes-Benz product, ensuring accuracy and adherence to factory specifications. Digital Accessibility: Instant access and download capability, offering a modern alternative to bulky printed manuals. 📋 Manual Details Coverage Areas Manual Type: Service and Repair Manual Software Language: English Format: Software (Digital) Page Count Page Count Estimate: Thousands (typical for comprehensive factory-level software) Content Type: Official Factory Service Manual 📖 Manual Coverage Systems Covered Engine Mechanical: Complete coverage of the 5.5L V8 engine, including cylinder head, block, crankshaft, pistons, connecting rods, camshafts, timing system, lubrication system, and cooling system. Engine Management: Detailed diagnostics and repair procedures for the Engine Control Module (ECM), fuel injection system (CIS-E, Sequential Multiport Fuel Injection - SMPI), ignition system, emissions control systems (OBD-II, catalytic converters, O2 sensors), and exhaust system. Transmission Automatic: Comprehensive coverage of the 7-speed automatic transmission (7G-TRONIC), including valve body, torque converter, electronic controls, gear ratios, clutch packs, and hydraulic system. Drivetrain 4Wd: In-depth information on the permanent all-wheel-drive system, including center differential, transfer case, front and rear axle assemblies, CV joints, driveshafts, and locking differentials. Suspension Steering: Detailed procedures for the independent front and solid rear axle suspension, including shock absorbers, springs, control arms, bushings, stabilizer bars, power steering system, steering column, and steering gear. Brakes: Complete coverage of the Anti-lock Braking System (ABS), Electronic Stability Program (ESP), brake calipers, rotors, pads, brake lines, hydraulic unit, and parking brake system. Electrical System: Extensive coverage of the entire electrical system, including the battery, alternator, starter, fuse boxes, wiring diagrams for all circuits, lighting system (headlights, taillights, interior), horn, and power accessories. Body Chassis: Procedures for body panel repair, doors, windows, sunroof, interior trim, bumpers, fenders, hood, tailgate, and chassis component alignment. Climate Control: Detailed diagnostics and repair of the automatic climate control system, including HVAC unit, blower motor, refrigerant system, AC compressor, evaporator, condenser, and control modules. Infotainment Navigation: Information on the COMAND infotainment system, navigation, radio, CD changer, speaker system, and telematics. Procedures Included Maintenance: Scheduled maintenance intervals, oil changes, filter replacements, fluid level checks and top-offs, belt inspection and replacement, spark plug replacement, and general inspections. Troubleshooting: Systematic diagnostic procedures for identifying and resolving common and uncommon issues across all vehicle systems, including fault code interpretation. Repair: Step-by-step repair instructions for component replacement, adjustments, and reassembly for all major and minor vehicle systems. Diagnostics: Detailed diagnostic charts, flowcharts, and explanations of diagnostic trouble codes (DTCs) related to engine, transmission, ABS, ESP, and other electronic control units. Wiring Diagrams: Comprehensive and detailed electrical wiring diagrams for every circuit in the vehicle, including component locations and connector pinouts. Specifications: Accurate torque specifications, clearances, fluid capacities, electrical values, and measurement tolerances for all components. Technical Depth Engine Rebuild: Complete procedures for engine disassembly, inspection, machining, and reassembly, including specifications for critical engine components. Transmission Overhaul: Detailed instructions for the complete overhaul and rebuilding of the 7G-TRONIC automatic transmission. Suspension Alignment: Specifications and procedures for wheel alignment, suspension component adjustments, and driveline measurements. 📊 Manual Specifications File Format Software Type: Proprietary Diagnostic & Repair Software Platform Searchability: Fully searchable text and indexed content for quick information retrieval. Multimedia: May include diagrams, illustrations, and potentially video clips for complex procedures. Updates: Typically static for a specific model year, but some software versions may receive minor updates. ⚙️ Engine Specifications Primary Engine Engine Code: M273 (Mercedes-Benz V8) Engine Type: Naturally Aspirated V8 Displacement: 5.5 liters (5439 cc) Bore X Stroke: 98.0 mm x 90.5 mm Compression Ratio: 10.7:1 Performance Horsepower: 382 hp @ 6000 rpm Torque: 391 lb-ft @ 2800 rpm Fuel System Fuel Type: Premium Unleaded Gasoline (91 octane recommended) Fuel Delivery: Sequential Multiport Fuel Injection (SMPI) Engine Management System: ME 9.7 (Bosch) 🔧 Transmission Standard Transmission Type: 7-speed Automatic (7G-TRONIC) Gear Ratios: 4.375 / 2.857 / 1.921 / 1.370 / 1.000 / 0.820 / 0.729 (Forward); 3.416 (Reverse) Features Selectable Modes: Comfort (C) and Sport (S) modes. Transfer Case: 2-speed transfer case with planetary gear center differential and lockable rear differential (optional). Fluid Specifications Transmission Fluid Type: MB Specification 236.10 (ATF) 📐 Dimensions Exterior Length: 189.1 inches (4803 mm) Width: 76.0 inches (1930 mm) Height: 79.1 inches (2009 mm) Wheelbase: 112.2 inches (2850 mm) Weights Curb Weight: Approx. 5,130 lbs (2327...