🏷️ Basic Information Identification Make: Mercedes-Benz Model: S-Class Chassis Code: W221 Model Year: 2010 Product Type: Service Repair Workshop Manual 👋 Introduction Market Position Vehicle Class: Full-size Luxury Sedan Target Audience: Luxury vehicle owners, independent repair shops specializing in European vehicles, automotive technicians. Competitive Analysis Key Competitors: BMW 7 Series, Audi A8, Lexus LS, Porsche Panamera, Jaguar XJ. Key Features Vehicle Highlights: Advanced technology, superior comfort, powerful engines, sophisticated design, and renowned safety features. Manual Purpose Primary Goal: To provide detailed, accurate, and comprehensive repair and maintenance information for the 2010 Mercedes-Benz S-Class W221. 📋 Manual Details Coverage Areas Manual Language: English Manual Format: PDF Download Manual Type: Factory Service Repair Workshop Manual Licensing Terms: No Expiry Dates, No Extra Fees 📖 Manual Coverage Systems Covered Engine Mechanical: Complete engine assembly, disassembly, overhaul, timing, cooling, lubrication, and fuel delivery systems. Engine Management: ECU diagnosis, sensors, actuators, ignition system, emissions control (OBD-II). Transmission Automatic: 7G-TRONIC PLUS (722.9) service, repair, diagnostics, valve body, torque converter, fluid service. Drivetrain: Driveshafts, differentials, axles, wheel bearings, 4MATIC all-wheel drive system. Suspension: AIRMATIC semi-active air suspension, Active Body Control (ABC), front and rear suspension components, steering knuckle, control arms. Steering: Hydraulic power steering system, steering column, steering gear, rack and pinion. Brakes: ABS, ESP (Electronic Stability Program), SBC (Sensotronic Brake Control - early W221 models may have this, though 2010 typically uses a conventional hydraulic system with ESP), brake pads, rotors, calipers, hydraulic lines, parking brake. Electrical System: Battery, alternator, starter, wiring diagrams, fuse boxes, relays, lighting systems (headlights, taillights, interior).. Body And Interior: Body panels, doors, hood, trunk, bumpers, interior trim, seats, headliner, HVAC system controls. Climate Control: THERMOTRONIC automatic climate control, A/C system components, refrigerant, heater core, blower motor. Infotainment And Comfort: COMAND NTG 4.0 infotainment system, audio, navigation, Bluetooth, climate control interfaces, power seats, windows, mirrors. Safety Systems: AIRBAG system, seatbelt pre-tensioners, PRE-SAFE® system, Parking Assist (PARKTRONIC). Procedures Included Routine Maintenance: Oil changes, filter replacements, fluid checks and top-offs, tire rotation, brake pad replacement, spark plug replacement. Diagnostics And Troubleshooting: Systematic fault finding, diagnostic trouble codes (DTCs), component testing, repair procedures for common issues. Component Replacement: Detailed step-by-step guides for replacing major and minor components across all systems. Rebuilding And Overhaul: Engine and transmission rebuild procedures, including specifications and tolerances. Electrical Component Testing: Testing of sensors, actuators, control modules, and wiring harnesses. Suspension And Steering Alignment: Adjustment procedures for wheel alignment and suspension components. Brake System Bleeding: Procedures for bleeding the hydraulic brake system. HVAC System Service: Refrigerant charging, leak detection, component replacement for the climate control system. Technical Depth Depth Level: Comprehensive: Covers from basic maintenance to complete engine and transmission overhauls, including advanced diagnostics. Diagnostic Tools Required: Mentions proprietary diagnostic tools such as STAR DIAGNOSIS (XENTRY/DAS) for advanced troubleshooting and module programming. Special Tools Required: Details specific Mercedes-Benz special tools needed for certain repair procedures. 📊 Manual Specifications File Format File Type: PDF Searchability: Searchable text content for quick information retrieval. Printability: Printable pages for hands-on workshop use. Digital Access: Instant download to computer, tablet, or smartphone. Print Quality Image Resolution: High-resolution diagrams and illustrations. Text Clarity: Clear and legible text for instructions and specifications. Binding Type Binding: Digital (PDF) - No physical binding. Paper Type Paper: Digital (PDF) - Not applicable. ⚙️ Engine Specifications Primary Engine Engine Code 2010 Us: M272 (3.5L V6), M273 (5.5L V8), M275 (5.5L Bi-Turbo V12 - in S65 AMG). Performance 350 Engine Displacement 350: 3.5 Liters (3498 cc) Engine Type 350: DOHC V6, 24 Valves Horsepower 350: Approx. 268 hp @ 6000 rpm Torque 350: Approx. 258 lb-ft @ 2400-5000 rpm Performance 500 Engine Displacement 500: 5.5 Liters (5461 cc) Engine Type 500: DOHC V8, 32 Valves Horsepower 500: Approx. 382 hp @ 6000 rpm Torque 500: Approx. 391 lb-ft @ 2800-4800 rpm Fuel System Fuel Type: Premium Unleaded Gasoline (91 octane or higher recommended) Fuel Delivery: Electronic Fuel Injection (EFI), Sequential Multi-Port Fuel Injection (MPI). Engine Management ECM Details: ME 9.7 (for M272/M273), MS 42 (for M275) engine control modules. 🔧 Transmission Standard Standard Transmission: 7-speed Automatic Transmission 7G-TRONIC PLUS (722.9) Optional Optional Transmission: AMG SPEEDSHIFT MCT 7-speed sport transmission (in S63/S65 AMG models). Features Transmission Modes: Comfort (C), Sport (S), Manual (M) shifting modes. Fluid Specifications Transmission Fluid Type: MB Spec 236.14 (e.g., Mobil ATF 134, Pentosin ATF1) Transmission Capacity Transmission Fluid Capacity: Approx. 9.5 - 10.5 Liters (for complete refill, actual amount depends on torque converter drain). 📐 Dimensions Exterior Length: Approx. 5092 mm (200.5 in) for standard wheelbase, 5226 mm (205.7 in) for long wheelbase. Width: Approx. 1871 mm (73.7 in) Height: Approx. 1473 mm (58.0 in) Wheelbase: Approx. 3035 mm (119.5 in) standard, 3165 mm (124.6 in) long. Weights Curb Weight: Approx. 1950-2100 kg (4300-4600 lbs), depending on engine and configuration. 🛡️ Safety Features Ratings NHTSA Rating: Generally received 5-star...