🏷️ Basic Information Identification Make: Mercedes-Benz Model: S-Class Model Variant: S550 Sport Year: 2008 Codes Chassis Code: W221 👋 Introduction Market Position Positioning: Flagship luxury sedan, representing pinnacle of Mercedes-Benz engineering and comfort Competitive Analysis Competitors: BMW 7 Series, Audi A8, Lexus LS, Porsche Panamera Key Features Design Philosophy: Sophistication, advanced technology, superior comfort, and performance Sport Package: Likely includes AMG styling cues, sport-tuned suspension, larger wheels, and sport steering wheel 📋 Manual Details Coverage Areas Primary Coverage: Vehicle operation, maintenance, and specifications Secondary Coverage: Climate control, entertainment systems, driver assistance features, safety restraints Page Count Estimated Page Count: Approximately 300-400 pages (based on typical Mercedes-Benz owner's manuals of this era) Manual Type Type: Owner's Manual Language Language: English Format Format: Digital PDF 📖 Manual Coverage Systems Covered Powertrain: Engine compartment details, engine oil, fuel information, battery, air filter Interior Systems: Instrument cluster, entertainment systems, climate controls, seating and safety restraints, driver controls Exterior Features: Lights, locks and security Procedures Included Operation: Vehicle operation, driving techniques, control usage Maintenance Basic: Fluid checks (oil, coolant, brake fluid), tire pressure monitoring, wiper blade replacement guidance Troubleshooting Basic: Warning lamp explanations, basic operational issues Customer Assistance: Customer assistance procedures, reporting safety defects (U.S. only) Technical Depth Depth: Owner-level operation and maintenance, not detailed repair procedures 📊 Manual Specifications File Format Compatibility: Requires PDF reader (e.g., Acrobat Reader, Foxit) Platform Compatibility: Works on any device capable of reading PDF files Print Quality Quality: Digital scan of factory original, quality dependent on source scan Binding Type Type: N/A (Digital Product) Paper Type Type: N/A (Digital Product) ⚙️ Engine Specifications Primary Engine Engine Code: M273 (Common for S550 in this generation) Engine Type: 4.7L V8 (4663 cc) Aspiration: Naturally Aspirated Performance Horsepower: Approx. 382 hp @ 6000 rpm Torque: Approx. 391 lb-ft @ 2800-4500 rpm Fuel System Injection Type: Sequential Multi-port Fuel Injection (SFI) Fuel Information Fuel Type: Premium Unleaded Gasoline Engine Compartment Component Locations: Dipsticks, fluid reservoirs, battery, fuse box, air filter housing locations detailed 🔧 Transmission Standard Transmission Type: 7-speed automatic (7G-TRONIC) Features Gear Selection: TouchShift paddle shifters or selector stalk, multiple drive modes (e.g., Comfort, Sport) Fluid Specifications Transmission Fluid Type: MB spec 236.14 (e.g., ATF NAG2 FE Plus) 📐 Dimensions Exterior Length: Approx. 5079 mm (200 in) Width: Approx. 1871 mm (73.7 in) Height: Approx. 1477 mm (58.1 in) Weights Curb Weight: Approx. 1950-2000 kg (4300-4400 lbs) Gross Vehicle Weight Rating: Approx. 2520 kg (5556 lbs) 🛡️ Safety Features Ratings NHTSA Rating: Not directly rated by NHTSA for this specific year/model in the same way as modern vehicles, but designed to meet rigorous safety standards. Active Features Electronic Stability Program: Standard Electronic Stability Program (ESP) Antilock Braking System: Standard Anti-lock Braking System (ABS) Brake Assist: Standard Brake Assist (BAS) Passive Features Airbags: Front airbags, side airbags, curtain airbags, front and rear head protection airbags Seat Restraints: Pre-tensioning seat belts with force limiters, active head restraints Child Seat Anchors: LATCH (Lower Anchors and Tethers for CHildren) system 💡 Technology Features Infotainment Comand System: COMAND (Cockpit Management and Navigation) NTG 3.0 system with integrated navigation, radio, CD/DVD player, and optional auxiliary inputs. Audio System: Harman Kardon LOGIC 7 surround sound system (optional on many trims) Driver Assistance Adaptive Cruise Control: DISTRONIC PLUS (optional, adaptive cruise control with proximity sensing and automatic braking) Parking Assistance: PARKTRONIC parking sensors (front and rear), optional rearview camera. Lane Keeping: Optional Lane Keeping Assist (LKA) Night Vision: Optional Night View Assist Connectivity Bluetooth: Bluetooth connectivity for hands-free calling and audio streaming (via Teleaid or MHI system). Telematics: Optional TELEAID emergency calling system. 🔧 Maintenance Service Intervals Oil Change Interval: Variable, typically indicated by the 'Service A' or 'Service B' reminders on the instrument cluster, often around 10,000-15,000 miles or 12 months, whichever comes first. Consult the manual for exact conditions. Major Service Intervals: Includes items like spark plugs, transmission fluid change, brake fluid change at specific mileage or time intervals (e.g., spark plugs around 100,000 miles). Fluid Specifications Engine Oil Type: Synthetic engine oil meeting MB Approval 229.5 (e.g., Mobil 1, Castrol Edge, Valvoline SynPower) with viscosity grade 0W-40 or 5W-40 recommended. Engine Oil Capacity: Approx. 8.0-8.5 liters (8.5-9.0 US quarts) with filter change. Coolant Type: Antifreeze/coolant meeting MB Approval 325.0 or 326.0 (typically a blue-green silicate-inhibited coolant). Brake Fluid Type: DOT 4 PLUS (MB spec 331.0) Power Steering Fluid Type: Hydraulic fluid meeting MB Approval 343.0 Known Issues Common Wear Items: Air suspension components (struts, compressor), ABS sensors, camshaft position sensors, transmission conductor plate, ignition coils. Maintenance Advisories: Regularly check for oil leaks, monitor suspension operation, and be aware of the complexity of the electronic systems. Part Numbers Oil Filter Example: A 273 180 01 09 (for M273 engine, verify with VIN) Air Filter Example: A 273 094 03 01 (for M273 engine, verify with VIN) 📚 Vehicle...