🏷️ Basic Information Identification Make: Mercedes-Benz Model: S-Class Chassis Code: W221 Year: 2008 Codes Manual Product Name: Mercedes Benz S-Class W221 Complete Workshop Service Repair Manual 2008 👋 Introduction Market Position Vehicle Segment: Full-size Luxury Sedan Target Audience: Affluent individuals seeking advanced technology, comfort, and prestige. Competitive Analysis Key Competitors: BMW 7 Series, Audi A8, Lexus LS, Porsche Panamera, Jaguar XJ. Key Features Luxury Appointments: High-quality interior materials, advanced comfort features, sophisticated design. Advanced Technology: Innovative driver assistance systems, advanced infotainment, sophisticated suspension technologies. Performance Options: Range of powerful V6, V8, and V12 engines (though V12 likely not covered in a 2008 model manual unless specified), refined ride quality. 📋 Manual Details Coverage Areas Manual Type: Workshop Service Repair Manual Language: English Format: Downloadable PDF Page Count Estimated Page Count: Extensive (typically 2000+ pages for complete W221 manuals) 📖 Manual Coverage Systems Covered Engine: Comprehensive coverage including all gasoline and diesel variants available for 2008 W221 models (e.g., M272 V6, M273 V8, OM642 V6 Diesel). Transmission: Detailed repair and maintenance for automatic transmissions (e.g., 7G-TRONIC PLUS). Drivetrain: Rear-wheel drive and 4MATIC all-wheel drive systems. Suspension Steering: AIRMATIC semi-active air suspension, ABC (Active Body Control) for select models, conventional suspension, steering systems (hydraulic power steering). Brakes: Hydraulic brake system, ABS, ESP, SBC (Sensotronic Brake Control for earlier models, though W221 largely transitioned away, coverage may be relevant for some components), parking brake. Electrical Electronics: Complete electrical diagrams, troubleshooting for ECUs, comfort systems (e.g., climate control, seats, windows), lighting, audio, navigation. Body Chassis: Body repair, panel replacement, interior trim, doors, hood, trunk, glass replacement. HVAC: Automatic climate control systems, component testing and replacement (compressor, condenser, evaporator, control modules). Fuel System: Fuel pump, injectors, fuel lines, evaporative emission control (EVAP) system. Exhaust System: Exhaust manifolds, catalytic converters, mufflers, oxygen sensors. Procedures Included Maintenance: Routine scheduled maintenance, oil changes, filter replacements, fluid checks and changes, brake service. Repair: Detailed step-by-step repair procedures for all major vehicle systems, including engine rebuilds, transmission overhauls, suspension component replacement. Diagnostics: Troubleshooting guides, diagnostic trouble codes (DTCs), symptom-based diagnosis, wiring diagrams for electrical issues. Installation: Procedures for replacing major components and accessories. Technical Depth Diagnostic Tools: References to Mercedes-Benz specific diagnostic tools (e.g., STAR Diagnosis system) and procedures for using generic OBD-II scanners. Rebuild Specifications: Engine and transmission internal component specifications, clearances, torque values for rebuilding. Wiring Diagrams: Comprehensive and detailed electrical wiring diagrams for all systems. Special Tools: Identification and use of specialized tools required for specific Mercedes-Benz repairs. 📊 Manual Specifications File Format File Type: PDF (Portable Document Format) Searchability: Searchable text-based content allowing for quick keyword lookup of procedures and specifications. Print Quality Resolution: High-resolution graphics and diagrams suitable for printing. Binding Type Digital Format: N/A (Digital Download) Paper Type Digital Format: N/A (Digital Download) ⚙️ Engine Specifications Primary Engine Engine Options 2008: Likely includes M272 (3.5L V6), M273 (4.7L V8), M275 (5.5L V12 Bi-Turbo in S65 AMG), OM642 (3.0L V6 Diesel). Performance M272 E35 Performance: Approx. 268 hp @ 6000 rpm, 258 lb-ft torque @ 3500 rpm. M273 E47 Performance: Approx. 382 hp @ 6000 rpm, 391 lb-ft torque @ 2800 rpm. Om642 De30La Performance: Approx. 221 hp @ 3800 rpm, 398 lb-ft torque @ 1600-2600 rpm. Fuel System Fuel Injection: Sequential multiport fuel injection (MPI) for gasoline, Common Rail Direct Injection (CDI) for diesel. Fuel Type: Premium Unleaded Gasoline (91 octane or higher recommended for gasoline engines), Diesel Fuel for diesel engine. 🔧 Transmission Standard Transmission Type Standard: 7-speed automatic (7G-TRONIC PLUS) for most gasoline engines. Optional Transmission Type Optional: Some AMG models may feature a 5-speed AMG SPEEDSHIFT MCT (Multi-Clutch Technology) or a 7-speed version. Features Transmission Features: Driver-adaptive shifting, manual shift mode (Tiptronic), Sport and Comfort modes. 📐 Dimensions Exterior Wheelbase: Approx. 124.6 inches (3165 mm) Length: Approx. 200.9 inches (5103 mm) Width: Approx. 73.7 inches (1872 mm) Height: Approx. 58.2 inches (1478 mm) Weights Curb Weight Start: Approx. 4200 lbs (1905 kg) for S550 Curb Weight End: Approx. 4500+ lbs (2041+ kg) for S600/S65 AMG 🛡️ Safety Features Ratings NHTSA Front Impact Driver: 5-Star (for models tested) NHTSA Front Impact Passenger: 5-Star (for models tested) IIHS Top Safety Pick: Yes (for models tested) Active Features ABS: Standard Anti-lock Braking System Esp: Standard Electronic Stability Program Adaptive Cruise Control: Optional DISTRONIC PLUS Lane Keeping Assist: Optional LANE KEEPING ASSIST Blind Spot Monitoring: Optional BLIND SPOT ASSIST Passive Features Airbags: Front, side-impact, curtain, knee airbags for driver and front passenger. Rear side airbags often optional or standard on higher trims. Seatbelts: Pretensioning and force-limiting front seatbelts, active head restraints (NECK-PRO). 💡 Technology Features Infotainment Command System: COMAND APS (Cockpit Management and Navigation) system with integrated radio, CD/DVD changer, navigation, and Bluetooth. Audio System: Harman Kardon LOGIC 7 surround sound system optional/standard on higher trims. Driver Assistance Parking Assistance: PARKTRONIC parking sensors, REARVIEW CAMERA...