🏷️ Basic Information Identification Make: Mercedes-Benz Model: R-Class Chassis Code: V251 Product Type: Workshop Service Repair Manual 👋 Introduction Market Position Vehicle Segment: Luxury Crossover/MPV (Multi-Purpose Vehicle) Competitive Analysis Key Competitors: BMW 5 Series Gran Turismo, Audi Q7, Volvo XC90 (early models), Cadillac Escalade. Key Features Vehicle Proposition: Offers a unique blend of SUV styling, minivan practicality, and Mercedes-Benz luxury, targeting families and those seeking versatile space with premium amenities. Manual Value Proposition Primary Benefit: Enables significant cost savings on maintenance and repairs by empowering owners to perform work themselves with expert guidance. Manual Usability Instruction Style: Features easy-to-follow, step-by-step instructions with accompanying pictures. 📋 Manual Details Coverage Areas Model Years Covered: 2006, 2007, 2008, 2009, 2010, 2011, 2012 Engine Variants Covered: All engine types Trim Levels Covered: All trim levels Transmission Types Covered: All transmission types Page Count Estimated Page Count: Comprehensive (specific page count not provided in product description) Manual Type Manual Type: Complete Workshop Service Repair Manual Language Language: English Format Format: Downloadable Digital Format (PDF) 📖 Manual Coverage Systems Covered Engine Mechanical: Engine assembly, cylinder head, crankshaft, pistons, connecting rods, camshafts, valve train, timing system, lubrication system, cooling system, fuel delivery system (mechanical components). Engine Electrical: Engine control unit (ECU) diagnostics, ignition system, starter system, charging system, sensors (crankshaft position, camshaft position, oxygen, coolant temperature, MAP/MAF, etc.), actuators (fuel injectors, ignition coils, throttle body), emissions control systems. Transmission Automatic: Transmission assembly, torque converter, valve body, gear sets, clutches and bands, transmission control module (TCM), shift solenoids, sensors, fluid circuits, and maintenance procedures. Drivetrain: Front and rear differentials, axles, CV joints, driveshafts, transfer case (if applicable). Suspension: Front and rear suspension components (struts, shock absorbers, control arms, ball joints, tie rod ends, bushings), springs, anti-roll bars, height control systems (if equipped), wheel alignment specifications. Steering: Steering column, steering gear, power steering system (hydraulic or electric), steering rack, tie rods, linkages, steering angle sensor. Brakes: Brake system components (discs, pads, calipers, master cylinder, brake booster, ABS modulator, hydraulic lines), parking brake system, brake fluid specifications, bleeding procedures, wear indicators. Electrical System: Battery, charging system, starter, lighting systems (headlights, taillights, interior lights), power windows, power locks, mirrors, wipers, horn, fuses, relays, wiring diagrams, body control module (BCM) functions. Body And Chassis: Body panels, doors, hood, tailgate, bumpers, glass, seals, interior trim, chassis frame, structural components, rust prevention, and repair procedures. HVAC: Heating, ventilation, and air conditioning (HVAC) system operation, refrigerant handling, compressor, condenser, evaporator, blower motor, climate control module, cabin air filter replacement. Infotainment And Electronics: Audio system, navigation system, communication modules (Bluetooth, cellular), instrument cluster, control modules, diagnostic port (OBD-II), CAN bus communication. Procedures Included Routine Maintenance: Oil and filter changes, air filter replacement, cabin air filter replacement, spark plug replacement, fluid checks and top-offs (coolant, brake fluid, power steering fluid, transmission fluid, windshield washer fluid). Scheduled Maintenance: Detailed service intervals for various components and fluids based on mileage and time. Troubleshooting Diagnostics: Step-by-step diagnostic procedures for identifying and resolving common and complex issues, including symptom-based troubleshooting guides and fault code interpretations. Component Removal Installation: Detailed instructions for removing and installing virtually every component of the vehicle, from minor parts to major assemblies. Repair Rebuild: Procedures for repairing or rebuilding major components such as engines, transmissions, and suspension parts. Electrical Component Testing: Methods for testing sensors, actuators, relays, and other electrical components using multimeters and diagnostic tools. Wiring Diagrams: Comprehensive and color-coded wiring diagrams for all vehicle systems, facilitating electrical troubleshooting. Body Repair: Procedures for dent repair, panel replacement, rust repair, and paintwork preparation. Specifications And Tolerances: Detailed technical specifications, torque values, clearances, and alignment settings for all serviceable parts. Technical Depth Depth Of Coverage: Comprehensive, covering all aspects from basic maintenance to advanced repairs and diagnostics, suitable for professional technicians and advanced DIY enthusiasts. 📊 Manual Specifications File Format File Format: PDF Print Quality Print Quality: High-resolution, suitable for clear printing of text and images. Binding Type Binding Type: N/A (Digital Download) Paper Type Paper Type: N/A (Digital Format) Software Requirements Required Software: Adobe Reader (free download) Accessibility Device Compatibility: Compatible with all PC & Mac computers, tablets, and smartphones. ⚙️ Engine Specifications Primary Engine Common Engines Early V251: 3.0L V6 (M272), 3.5L V6 (M272), 4.2L V8 (M273 - less common), 3.0L V6 Diesel (OM642). Performance Typical V6 Gas Horsepower: Approx. 228-268 hp (depending on specific V6 variant) Typical V6 Gas Torque: Approx. 221-258 lb-ft (depending on specific V6 variant) Fuel System Fuel Delivery: Electronic Fuel Injection (EFI) Engine Management ECM Type: Mercedes-Benz proprietary ECU/ECM Emission Control Emission Systems: Catalytic converters, secondary air injection (on some models), evaporative emissions control (EVAP). 🔧 Transmission Standard Transmission Transmission Type Standard: 7-speed Automatic (7G-TRONIC) Optional Transmission Transmission Type Optional: All-wheel drive (4MATIC) available on most models. Features Transmission Features: Driver-adaptive automatic shifting, manual mode (Tiptronic), often with steering wheel paddle...