🏷️ Basic Information Identification Make: Mercedes-Benz Model: S-Class Model Code: W221 Year: 2008 Codes Chassis Code: W221 Platform: W221 👋 Introduction Market Position Segment: Full-size Luxury Sedan Target Audience: Affluent individuals, corporate executives, high-profile clientele Competitive Analysis Key Competitors 2008: BMW 7 Series, Audi A8, Lexus LS, Porsche Panamera (introduced later) Key Features Vehicle Design Philosophy: Elegance, comfort, advanced technology, safety leadership Innovation: Introduction of advanced driver assistance systems (ADAS), enhanced COMAND interface 📋 Manual Details Coverage Areas All Models: Yes Repair Scope: A-Z Page Count Estimated Pages: 2000+ Manual Type Type: Factory Service and Repair Manual Language Language: English Format Format: Digital (PDF) 📖 Manual Coverage Systems Covered Engine: All engine variants for 2008 S-Class (e.g., V8, V12) Transmission: Automatic Transmission (e.g., 7G-TRONIC) Drivetrain: Rear-Wheel Drive (RWD), 4MATIC All-Wheel Drive (AWD) Suspension: AIRMATIC Air Suspension, Active Body Control (ABC) Brakes: Hydraulic Brake System, ABS, ESP, SBC (if applicable), Brake Assist Steering: Hydraulic Power Steering, SPEEDTRONIC (variable steering assistance) Electrical System: Battery, Charging System, Lighting, Fuses, Relays, ECU control modules Bodywork: Exterior panels, doors, hood, trunk, glass, interior trim, chassis structural components HVAC: Automatic Climate Control, AIRMATIC air distribution Infotainment: COMAND system, navigation, audio, telephone integration Driver Assistance: Distronic Plus, PARKTRONIC, Lane Keeping Assist, Blind Spot Assist, PRE-SAFE® Procedures Included Maintenance: Scheduled maintenance (oil changes, filter replacements, inspections) Troubleshooting: Diagnostic procedures, symptom-based troubleshooting, fault code interpretation Repair: Component removal, installation, adjustment, and calibration Diagnostics: OBD-II diagnostics, SDS (Star Diagnosis System) integration Wiring Diagrams: Complete electrical schematics for all systems Specifications: Torque values, fluid types and capacities, wear limits Special Tools: Identification and usage of Mercedes-Benz specific tools Technical Depth Depth: Comprehensive (from basic maintenance to complete engine/transmission overhauls) 📊 Manual Specifications File Format Searchable Text: Yes Printable: Yes Print Quality Resolution: High-resolution (suitable for screen viewing and printing) Binding Type Binding Type: N/A (Digital) Paper Type Paper Type: N/A (Digital) ⚙️ Engine Specifications Primary Engine Engine Options 2008: S350 (3.5L V6), S550 (5.5L V8), S600 (5.5L V12 Twin-Turbo), S63 AMG (6.2L V8 Naturally Aspirated), S65 AMG (6.0L V12 Twin-Turbo) Performance S550 Horsepower: 382 hp @ 6000 rpm S550 Torque: 391 lb-ft @ 2800-4000 rpm Fuel System Fuel Type: Premium Unleaded Gasoline (91+ octane) Injection: Sequential Multi-Port Fuel Injection (MPI) Engine Management ECU Type: ME/MED Control Units 🔧 Transmission Standard Standard Transmission: 7-speed automatic (7G-TRONIC) Optional Optional Transmission: N/A (7-speed was standard across most non-AMG models) Features Transmission Modes: Comfort (C), Sport (S) Fluid Specs Transmission Fluid Type: MB 236.14 (e.g., ATF LT 71141) 📐 Dimensions Exterior Wheelbase W221: 124.6 inches (3165 mm) Overall Length W221: 200.0 inches (5080 mm) Weights Curb Weight S550: approx. 4500-4700 lbs (2040-2130 kg) Gross Vehicle Weight Rating Gvwr: Varies by model, typically 5500-6000 lbs 🛡️ Safety Features Ratings NHTSA Front Impact: 5-Star (Likely, based on previous models and luxury segment standards) IIHS Crash Test Performance: Good (Likely, based on previous models and luxury segment standards) Active Features Active Safety Systems: ABS, ESP, Brake Assist, DISTRONIC PLUS, PARKTRONIC, Lane Keeping Assist, Blind Spot Assist, Night View Assist Passive Features Airbags: Front airbags, side airbags, curtain airbags, knee airbags Pre Safe System: PRE-SAFE® occupant protection system 💡 Technology Features Infotainment Infotainment System: COMAND APS (Cockpit Management and Navigation) Display Size: 7-inch high-resolution color display Audio System: Harmon Kardon LOGIC 7 surround sound system (optional/standard on higher trims) Driver Assistance Adaptive Cruise Control: DISTRONIC PLUS Parking Aid: PARKTRONIC Night Vision: Night View Assist (optional) Connectivity Bluetooth: Integrated Bluetooth telephony Usb Aux Input: Available through Media Interface (optional) 🔧 Maintenance Service Intervals Oil Change Interval Gasoline: Every 10,000 miles (16,000 km) or 12 months, whichever comes first (flexible service system) Major Service A B: Refer to Service A/B schedule (typically includes comprehensive inspections, filter replacements, fluid checks) Fluid Specifications Engine Oil Type Gasoline: MB 229.5 (e.g., Mobil 1 0W-40, Castrol Syntec 0W-30) Coolant Type: MB 325.0 or 326.0 (Antifreeze/Coolant) Brake Fluid Type: DOT 4 Plus (MB 331.0) Known Issues Common Wear Items: Ignition coils, spark plugs, serpentine belt, suspension components (especially ABC), O2 sensors Electronic Issues: COMAND system glitches, parktronic sensor failures, SAM module issues Air Suspension Issues: Air springs leaking, compressor failure, valve body issues with ABC system 📚 Vehicle History Brand Heritage Brand Focus: Automotive engineering, luxury, safety, innovation Model Evolution S Class Legacy: Long-standing flagship luxury sedan, setting industry standards for decades. Production W221 Production Years: 2005-2013 Manufacturing Location: Sindelfingen, Germany 🏆 Awards & Recognition Recognitions Typical Award Categories: Luxury Car of the Year, Best Safety Features, Most Comfortable Ride Ratings Owner Satisfaction Scores: Generally high, reflecting luxury and build quality Certifications Emissions Standards: Compliant with relevant emissions standards for the model year (e.g., LEV II in US market)