🏷️ Basic Information Identification Make: Mercedes-Benz Model: R350 Year: 2011 Codes Chassis Code: W251 Internal Model Code: R251 👋 Introduction Market Position Segment: Luxury Crossover SUV (midsized) Target Audience: Families seeking premium comfort, space, and Mercedes-Benz engineering Competitive Analysis Competitors: BMW X5, Audi Q7, Volvo XC90, Lexus RX Key Features Differentiators: Spacious interior, car-like handling, premium Mercedes-Benz build quality and brand prestige Manual Value Benefit To Owner: Empowers owners and independent technicians with factory-level diagnostic and repair information, potentially saving on dealership service costs. 📋 Manual Details Coverage Areas Coverage Scope: Comprehensive factory service and repair Page Count Estimated Page Count: Extensive (Software dependent, but typical factory manuals exceed 1000 pages) Manual Type Type: Service and Repair Manual Software Language Language: English Format Format: Digital Software (e.g., PDF, proprietary viewer) 📖 Manual Coverage Systems Covered Engine Mechanical: Engine assembly, disassembly, diagnostics, timing, lubrication, cooling Engine Management: Fuel injection, ignition system, emissions control, ECU diagnostics, sensors Transmission: Automatic transmission (e.g., 7G-TRONIC PLUS), torque converter, control systems, fluid service Drivetrain: All-wheel drive (4MATIC) system, differentials, axles, driveshafts Suspension: Front and rear suspension components, air suspension (AIRMATIC), shocks, struts, control arms Brakes: Brake system components, ABS, ESP, brake fluid service, rotor/pad replacement, hydraulic systems Steering: Power steering system, steering column, steering gear Electrical System: Battery, charging system, starter, lighting, fuses, relays, wiring diagrams Body And Chassis: Frame, body panels, doors, windows, glass, trim, corrosion protection HVAC: Heating, ventilation, air conditioning system, refrigerant service, climate control module Interior: Seats, dashboard, upholstery, interior trim, airbags, restraint systems Infotainment: COMAND system, audio, navigation, telematics Procedures Included Maintenance: Scheduled maintenance, oil changes, filter replacements, fluid checks and top-offs Diagnostics: Troubleshooting guides, fault code interpretation, diagnostic tool usage Repair: Component removal and installation, major system overhauls, specific repair procedures Calibration: Sensor calibration, steering angle sensor, suspension height calibration Replacement: Component replacement (e.g., brake pads, spark plugs, sensors, filters) Technical Depth Depth: Factory-level diagnostic procedures, repair specifications, torque values, electrical schematics 📊 Manual Specifications File Format File Type: Likely PDF or proprietary executable/viewer Searchability: Typically text-searchable for quick information retrieval Print Quality Printability: Designed for digital viewing, printable pages usually available Binding Type Binding: N/A (Software) Paper Type Paper: N/A (Software) ⚙️ Engine Specifications Primary Engine Engine Code: M272 (for most R350 models) Engine Type: 3.5L V6 (Naturally Aspirated) Performance Horsepower: 268 hp @ 6000 rpm Torque: 258 lb-ft @ 2400-5000 rpm Fuel System Fuel Delivery: Electronic Fuel Injection (EFI) Fuel Type: Premium Unleaded Gasoline (91 octane or higher recommended) Engine Management Ignition System: Distributorless Electronic Ignition (DIS) with coil-on-plug Emissions Standard: LEVII (Tier 2 Bin 5 equivalent) 🔧 Transmission Standard Type: 7G-TRONIC PLUS Automatic Drive Layout: 4MATIC All-Wheel Drive Features Shift Modes: Comfort (C) and Sport (S) modes Fluid Type: MB 236.14 (e.g., Mobil ATF 134, Pentosin ATF 134) 📐 Dimensions Exterior Length: 200.9 inches (5103 mm) Width: 77.1 inches (1958 mm) Height: 67.5 inches (1715 mm) Wheelbase: 126.6 inches (3216 mm) Weights Curb Weight: 4,794 lbs (2174 kg) (approx.) Gross Vehicle Weight Rating: 6,283 lbs (2845 kg) (approx.) 🛡️ Safety Features Ratings NHTSA Overall Rating: 5-Star (for models tested, typically) IIHS Top Safety Pick: Often a Top Safety Pick recipient Active Features Stability Control: Electronic Stability Program (ESP) Traction Control: ASR (Acceleration Skid Control) Brake Assist: Brake Assist System (BAS) Passive Features Airbags: Front, front-side, curtain, and rear-side airbags (standard) Seatbelts: 3-point seatbelts with pretensioners and force limiters 💡 Technology Features Infotainment System Name: COMAND APS (Cockpit Management and Navigation) System Features: GPS Navigation, AM/FM/Satellite Radio, CD/DVD Player, Auxiliary Audio Input, Bluetooth connectivity. Driver Assistance Adaptive Cruise Control: DISTRONIC (Optional) Parking Assist: PARKTRONIC (Optional front and rear parking sensors) Connectivity Phone Integration: Bluetooth hands-free communication 🔧 Maintenance Service Intervals Oil Change Interval: Flexible, typically every 10,000 miles or 12 months, based on driving conditions (indicated by 'Service A' or 'Service B'). Transmission Fluid Change: Typically recommended every 40,000 - 60,000 miles for the 7G-TRONIC PLUS. Fluid Specifications Engine Oil Type: MB 229.5 (e.g., Mobil 1 Synthetic European Car Formula 0W-40, Pennzoil Platinum Euro 0W-40) Engine Oil Capacity: 8.5 US quarts (8.0 liters) with filter change (refer to manual for exact capacity) Coolant Type: MB 325.0 (Antifreeze/Coolant - Glysantin G48 or equivalent) Brake Fluid Type: DOT 4 Plus (MB 331.0) Known Issues M272 Engine Issue: M272 engines can suffer from worn intake manifold flaps or balance shaft failure due to material degradation; requires inspection and potential replacement. Air Suspension Issue: AIRMATIC system can experience leaks from air springs or compressor failure over time. Electronic Module Failure: Various electronic control units (ECUs) can be prone to failure or require software updates. 📚 Vehicle History Brand Heritage Manufacturer: Daimler AG (Mercedes-Benz) Model Evolution Introduction Year: 2005 (as 2006 model) First Generation: W251 (2006-2011) Update Cycle: Received a facelift for the 2009 model year, introducing updated styling and features. Production Manufacturing...