🏷️ Basic Information Identification Make: Mercedes-Benz Model: S-Class Model Code: W221 Year: 2007 Generation Generation Name: Fifth Generation (W221) Generation Start Year: 2005 Generation End Year: 2013 Codes Chassis Code: W221 👋 Introduction Market Position Segment: Full-Size Luxury Sedan Predecessor: Mercedes-Benz S-Class (W220) Competitive Analysis Competitors: BMW 7 Series, Audi A8, Lexus LS, Porsche Panamera, Jaguar XJ. Key Features Innovation: Pioneered technologies like PRE-SAFE®, DISTRONIC PLUS, and advanced driver assistance systems. Design Philosophy: Elegant, timeless design with a focus on sophisticated luxury and advanced engineering. 📋 Manual Details Coverage Areas Coverage Scope: All Models & All Repairs A-Z Page Count Estimated Page Count: Extensive (typically 1,500+ pages for complete factory service manuals) Manual Type Type: Factory Service and Repair Manual Language Language: English Format Format: Digital (likely PDF, may vary) 📖 Manual Coverage Systems Covered Powertrain: Engine mechanicals (M272, M273, M156), engine management, fuel system, exhaust system, transmission (7G-TRONIC automatic), drivetrain. Chassis: Suspension (AIRMATIC, Active Body Control), steering system (Sensotronic, hydraulic), braking system (ABS, ESP, SBC - if applicable earlier models but standard features), wheels, tires. Electrical: 12V electrical system, battery, alternator, starter, lighting, instruments, infotainment system (COMAND), navigation, climate control, seat adjustments, power windows, mirrors, door locks, Keyless-Go. Bodywork: Body panels, doors, hood, trunk, bumpers, interior trim, glass, seals, heating, ventilation, and air conditioning (HVAC). Safety Systems: Airbags, seatbelts, ISOFIX, ADAPTIVE BRAKE, ESP, ABS, DISTRONIC PLUS, PARKTRONIC, LANE KEEPING ASSIST, BLIND SPOT ASSIST, NIGHT VIEW ASSIST. Procedures Included Maintenance: Scheduled maintenance, oil changes, filter replacements, fluid checks and top-offs, brake pad/rotor replacement, spark plug replacement, belt replacement, diagnostic checks. Diagnostics: Troubleshooting guides, fault code diagnosis (using STAR diagnostic tools), symptom-based troubleshooting, wiring diagrams, component testing procedures. Repair: Component removal and installation, engine rebuild procedures, transmission overhaul, suspension component replacement, brake system repair, electrical component repair, body panel repair. Calibration And Adjustment: Sensor calibration (e.g., steering angle sensor, ride height sensors), door alignment, key programming, control unit programming and adaptation. Technical Depth Depth: Complete Factory Level. Covers everything from basic fluid changes to complex electronic module diagnostics and complete engine/transmission rebuilds. Essential for dealership-level technicians and serious DIY enthusiasts. 📊 Manual Specifications File Format File Type: Likely PDF; optimized for digital access and searchability. Searchability: High (with OCR and indexed content). Print Quality Clarity: High-resolution diagrams, illustrations, and photographs. Binding Type Binding: N/A (for digital format, but print version would typically be perfect bound or spiral bound). Paper Type Paper Quality: N/A (for digital format, but original manuals often used high-quality, durable paper). ⚙️ Engine Specifications Primary Engine Engine Codes 2007: M272 (3.5L V6), M273 (5.5L V8), M156 (6.2L V8 - S63 AMG) Displacement M272: 3498 cc Horsepower M272: 272 hp @ 6000 rpm (approx.) Torque M272: 258 lb-ft @ 2400-5000 rpm (approx.) Displacement M273: 5461 cc Horsepower M273: 382 hp @ 6000 rpm (approx.) Torque M273: 391 lb-ft @ 2800-4800 rpm (approx.) Displacement M156: 6208 cc Horsepower M156: 518 hp @ 6800 rpm (approx.) Torque M156: 479 lb-ft @ 5200 rpm (approx.) Performance Engine Layout: V6 and V8 configurations Engine Technology: All-aluminum construction, DOHC with variable valve timing (VVT). Fuel System Fuel Delivery: Sequential Multi-Point Fuel Injection (MPI) or Direct Injection (depending on specific variant). Recommended Fuel: Premium Unleaded Gasoline (91 octane or higher). 🔧 Transmission Standard Transmission Type: 7-speed automatic (7G-TRONIC) Drivetrain: Rear-wheel drive (RWD) standard; 4MATIC all-wheel drive optional. Optional Optional Drivetrain: 4MATIC All-Wheel Drive Features Transmission Modes: Comfort (C) and Sport (S) modes. 📐 Dimensions Exterior Length: Approx. 199.7 inches (5072 mm) Width: Approx. 73.7 inches (1872 mm) Height: Approx. 58.2 inches (1478 mm) Wheelbase: Approx. 119.7 inches (3040 mm) Weights Curb Weight: Approx. 4,000 - 4,500 lbs (1814 - 2041 kg) depending on engine and options. 🛡️ Safety Features Ratings NHTSA Overall Rating: Likely 5-Star (typical for S-Class models of this era, though specific 2007 ratings may vary). IIHS Rating: Likely 'Good' in relevant categories. Active Features Active Safety Systems: ABS, EBD, ESP, BAS (Brake Assist System), Adaptive Brake Lights, PRE-SAFE® system. Driver Assistance Packages: Optional DISTRONIC PLUS (adaptive cruise control), LANE KEEPING ASSIST, BLIND SPOT ASSIST, NIGHT VIEW ASSIST. Passive Features Airbags: Front airbags, side airbags, front and rear head curtain airbags, optional rear side airbags. Seatbelts: 3-point inertia-reel seatbelts with pre-tensioners and force limiters, Active Head Restraints (NECK-PRO). 💡 Technology Features Infotainment Infotainment System: COMAND APS (Cockpit Management and Navigation). Infotainment Features: CD/DVD player, AM/FM radio, navigation system, Bluetooth connectivity, optional Harman Kardon surround sound system. Driver Assistance Adas Features: Standard PRE-SAFE®; optional DISTRONIC PLUS, PARKTRONIC, rearview camera, KEYLESS-GO. Connectivity Connectivity Options: Bluetooth for hands-free calling and audio streaming. Convenience Convenience Features: Power adjustable front and rear seats with memory, heated and ventilated seats, multi-zone climate control, power sunroof, power trunk closer. 🔧 Maintenance Service Intervals Oil Change Interval: Typically every 10,000 miles or 12 months, whichever comes first (refer to manual for...