🏷️ Basic Information Identification Make: Mercedes-Benz Model: S-Class Model Variant: S550 Sport Year: 2007 Generation Chassis Code: W221 Generation Designation: Fourth Generation (W221) Codes Sport Package Code: P30 (AMG Styling Package) 👋 Introduction Market Position Segment: Full-Size Luxury Sedan Target Audience: Affluent individuals seeking comfort, advanced technology, and refined driving experience Competitive Analysis Key Competitors: BMW 7 Series, Audi A8, Lexus LS, Porsche Panamera (later models) Key Features Design Philosophy: Elegant, timeless styling with a focus on aerodynamic efficiency and luxurious presence Sport Package: Enhancements typically include AMG-designed front/rear aprons and side skirts, larger AMG wheels, and sport-tuned suspension. Innovations: Introduction of PRE-SAFE® anticipatory safety system, advanced COMAND infotainment, active suspension systems (ABC). 📋 Manual Details Coverage Areas Primary Coverage: Owner's Information and Operation Additional Coverage: Maintenance, Specifications, Cleaning, Safety Features, Driver Controls, Entertainment Systems, Climate Control, Security, Customer Assistance Page Count Estimated Page Count: Approximately 300-500 pages (typical for this model year) Manual Type Type: Owner's Manual Language Language: English Format Format: Digital PDF 📖 Manual Coverage Systems Covered Powertrain: Engine operation, fuel system, cooling system, exhaust system, basic maintenance procedures Chassis: Brake system, steering system, suspension system (overview) Electrical: Instrument cluster, lighting, power windows, locks, mirrors, basic infotainment system operation, climate control system Safety Systems: Airbags, seat belts, child restraint systems, electronic stability control (ESP), anti-lock braking system (ABS), tire pressure monitoring system (TPMS) Driver Controls: Steering wheel controls, shift lever operation, parking brake, cruise control, seat adjustments, mirror adjustments Infotainment And Comfort: COMAND infotainment system (basic operation), climate control functions, seat heating/ventilation (if equipped), power features Procedures Included Basic Maintenance: Checking fluid levels (oil, coolant, washer fluid), tire pressure checks, bulb replacement (basic instructions) Cleaning And Care: Interior and exterior cleaning recommendations, paint care, upholstery care Troubleshooting Hints: Basic indicator light explanations, common warning messages Safety Operation: Proper use of safety restraints, child seat installation guidance Driving Techniques: Advice on efficient driving, operating various vehicle systems while driving Customer Assistance: Information on warranty, roadside assistance, contacting Mercedes-Benz Technical Depth Depth: Owner-level operation, maintenance, and basic troubleshooting; not a repair manual for in-depth diagnostics or component replacement. 📊 Manual Specifications File Format Format: PDF Searchable Text: Yes (typically included in factory PDFs) Readability: High (requires standard PDF reader) Print Quality Quality: Factory original quality, clear text and diagrams Binding Type Type: N/A (Digital PDF) Paper Type Type: N/A (Digital PDF) ⚙️ Engine Specifications Primary Engine Engine Code: M273 Engine Type: 4.7L V8 Aspiration: Naturally Aspirated Performance Horsepower: 382 hp @ 6000 rpm Torque: 391 lb-ft @ 2800-4000 rpm Fuel System Fuel Delivery: Sequential Multi-Port Fuel Injection (SFI) Recommended Fuel: Premium Unleaded Gasoline (91 octane or higher) Engine Compartment Key Components Coverage: Engine layout, fluid reservoirs, battery location, fuse boxes, air filter access. 🔧 Transmission Standard Transmission Type: 7-Speed Automatic Transmission Transmission Code: 722.9 (7G-TRONIC) Features Driving Modes: Comfort (C), Sport (S), Manual (M) Fluid Specifications Transmission Fluid Type: MB 236.14 (Shell ATF 134 or equivalent) 📐 Dimensions Exterior Length: 200.0 inches (standard wheelbase), 203.1 inches (long wheelbase) Width: 73.7 inches Height: 58.4 inches Weights Curb Weight: Approximately 4,400 - 4,600 lbs 🛡️ Safety Features Ratings NHTSA Front Impact: 5-Star (estimated for this generation) IIHS Side Impact: Good (estimated for this generation) Active Features Esp: Electronic Stability Program (standard) ABS: Anti-lock Braking System (standard) Bas: Brake Assist System (standard) Passive Features Airbags: Front, side, curtain airbags; possibly knee airbags Seat Belt Pretensioners: Standard on front seats Child Seat Anchors: LATCH system (rear seats) 💡 Technology Features Infotainment System: COMAND APS (Cockpit Management and Navigation). Features: Navigation system, CD/DVD player, AM/FM radio, optional satellite radio, Bluetooth connectivity (may require adapter for phone calls). Display: Central 7-inch color display screen. Driver Assistance Adaptive Cruise Control: DISTRONIC PLUS (optional) Parking Assistance: PARKTRONIC parking sensors (front and rear) Lighting: Bi-Xenon Headlights with Active Curve Illumination, LED Taillights. Suspension: AIRMATIC air suspension with adaptive damping system. Connectivity Bluetooth: Available for phone calls; media streaming support is limited or non-existent on early COMAND systems. 🔧 Maintenance Service Intervals Oil Change Interval: Flexible, typically indicated by the 'Service A' or 'Service B' indicators in the instrument cluster (approx. 10,000-15,000 miles or annually) Major Service Intervals: Spark plug replacement (e.g., every 100,000 miles for V8 engines), transmission fluid service (e.g., every 50,000-70,000 miles, though debated). Fluid Specifications Engine Oil Type: MB 229.5 (e.g., Mobil 1 0W-40 Synthetic) Engine Oil Capacity: 8.5 US quarts (with filter) Coolant Type: MB 325.0 / 326.0 (Glysantin G48 or equivalent) Brake Fluid Type: DOT 4 (MB 331.0) Power Steering Fluid: MB 236.3 (Pentosin CHF 11 S or equivalent) Known Issues Air Suspension: Airmatic struts and air compressor can be prone to leaks or failure over time. Electronic Modules: Various electronic control modules can develop faults, leading to warning lights or system malfunctions. Ignition Coils And Spark Plugs: Can require replacement, especially at...