🏷️ Basic Information Identification Make: Mercedes-Benz Model: R-Class Model Code: W251 Model Year: 2011 Generation Generation Identifier: First Generation (2006-2012) Codes Chassis Code: W251 👋 Introduction Market Position Vehicle Segment: Luxury Crossover SUV / Grand Tourer. Target Audience: Families and individuals seeking a premium, spacious, and comfortable vehicle with Mercedes-Benz engineering and luxury. Competitive Analysis Key Competitors 2011: BMW X5, Audi Q7, Volvo XC90, Cadillac SRX, Lexus RX. Key Features Unique Selling Points: Spacious interior, 7-seater option, Mercedes-Benz ride quality and luxury, advanced safety features, powerful engine options. Manual Value Proposition: Provides dealership-level technical information for accurate diagnosis and repair, empowering owners to maintain their vehicle effectively and save on costly dealership services. 📋 Manual Details Coverage Areas Covered Models Trims: All 2011 R-Class (W251) models and trims, including R350, R500, R63 AMG (if applicable for the specific model year, though R500 and R350 are most common for 2011). Page Count Estimated Page Count: Extensive, likely exceeding 1500-2000 pages based on typical Mercedes-Benz factory manual depth. Manual Type Manual Type: Factory Service and Repair Manual Language Language: English Format File Format: PDF Accessibility: Cross-platform compatible (Windows Vista/XP/ME/98/NT/2000, Mac) 📖 Manual Coverage Systems Covered Powertrain: Engine mechanical, fuel system, ignition system, cooling system, lubrication system, emissions control, exhaust system. Drivetrain: Automatic transmission (e.g., 7G-TRONIC), transfer case (if applicable), drive shafts, axles, differentials, hubs, wheel bearings. Suspension Steering: Front and rear suspension components (e.g., Airmatic air suspension, control arms, springs, shocks), steering column, power steering system, steering gear. Brakes: Brake system hydraulics, brake calipers, rotors, pads, ABS, ESP, SBC (if applicable), parking brake system. Electrical Electronics: Battery, charging system, starter, lighting (headlights, taillights, interior), instrument cluster, infotainment system, power windows, locks, mirrors, wipers, washers, horn, multiplex communication (CAN bus). Comfort Convenience: Climate control (HVAC), seats, seat belts, supplemental restraint system (SRS/airbags), interior trim, exterior trim, doors, hood, tailgate. Body Chassis: Body structural components, chassis, frame, body panels, glass, mirrors, seals. Procedures Included Maintenance Routine: Scheduled maintenance, fluid level checks, filter replacements, lubrication, brake pad/rotor replacement, belt replacement. Diagnostics Troubleshooting: Fault code interpretation (DTCs), symptom-based troubleshooting guides, component testing procedures. Repair Rebuild: Engine overhaul, transmission overhaul, suspension component replacement, brake system repair, electrical component replacement, body panel repair/replacement. Wiring Schematics: Comprehensive electrical wiring diagrams for all vehicle systems. Technical Depth Depth Of Information: Factory-level technical data, including detailed step-by-step repair instructions, torque specifications, special tool requirements, and diagnostic procedures. 📊 Manual Specifications File Format File Quality: High-resolution, searchable PDF with zoomable diagrams and illustrations. Print Quality Printability: Fully printable, allowing users to select and print specific sections or pages as needed. Binding Type Binding Type Digital: Digital (PDF) - no physical binding. Paper Type Paper Type Digital: N/A (Digital format). ⚙️ Engine Specifications Primary Engine Engine Type R350: 3.5L V6 M272 E35 Engine Type R500: 5.0L V8 M273 E50 Performance Horsepower R350: Approx. 268 hp @ 6000 rpm Torque R350: Approx. 258 lb-ft @ 2400-5000 rpm Horsepower R500: Approx. 382 hp @ 6000 rpm Torque R500: Approx. 391 lb-ft @ 2800-4800 rpm Fuel System Fuel Injection Type: Electronic Fuel Injection (EFI) with sequential port injection. Recommended Fuel: Premium Unleaded Gasoline (91 octane or higher) 🔧 Transmission Standard Transmission Type: 7G-TRONIC 7-speed automatic transmission Optional Optional Transmission: 4MATIC all-wheel drive system (standard on many R-Class models). Features Transmission Features: Touchshift manual shifting mode, Comfort (C), Sport (S), and Manual (M) driving modes. 📐 Dimensions Exterior Length: Approx. 198.9 inches (5052 mm) Width: Approx. 77.1 inches (1959 mm) Height: Approx. 67.3 inches (1709 mm) Wheelbase Wheelbase: Approx. 126.6 inches (3215 mm) Weights Curb Weight R350: Approx. 4,600 - 4,800 lbs (2087 - 2177 kg), depending on configuration. Curb Weight R500: Approx. 4,700 - 4,900 lbs (2132 - 2223 kg), depending on configuration. 🛡️ Safety Features Ratings NHTSA Front Crash Rating: 5-Star (Typical for Mercedes-Benz models of this era, subject to specific testing). IIHS Top Safety Pick: Likely a recipient of Top Safety Pick awards, typical for the brand and segment. Active Features Active Safety Systems: Anti-lock Braking System (ABS), Electronic Stability Program (ESP), Traction Control System (TCS), PRE-SAFE® anticipatory safety system. Passive Features Passive Safety Features: Front airbags, side airbags, curtain airbags, front-seat active head restraints, seat belt pretensioners. 💡 Technology Features Infotainment Infotainment System: COMAND APS (Cockpit Management and Navigation system) with 6.5-inch display, CD/DVD player, AM/FM radio, Bluetooth connectivity, optional Harman Kardon surround sound system. Driver Assistance Driver Assistance Features: Optional features could include DISTRONIC adaptive cruise control, PARKTRONIC parking assist, rearview camera, bi-xenon headlamps with active curve lighting. Connectivity Connectivity Options: Bluetooth for hands-free calling and audio streaming, AUX input, optional USB interface. 🔧 Maintenance Service Intervals Oil Change Interval: Typically every 10,000 miles (16,000 km) or 12 months, whichever comes first, using synthetic oil (refer to manual for exact spec). Major Service Interval: Major services (e.g., spark plugs, transmission fluid) typically...