🏷️ Basic Information Identification Make: Mercedes-Benz Model: GL450 Year: 2011 Codes Chassis Code: X164 Engine Code: 4.7L V8 (M273) 👋 Introduction Market Position Segment: Luxury Full-Size SUV Key Selling Points: Comfort, Spaciousness, Off-road capability, Luxury features Competitive Analysis Direct Competitors: BMW X5, Audi Q7, Lexus LX, Cadillac Escalade Key Features Powertrain Focus: Powerful V8 engine and sophisticated automatic transmission Suspension System: Standard AIRMATIC air suspension for adjustable ride height and comfort 📋 Manual Details Coverage Areas Language: English Format: Software (Digital Download) Page Count Estimated Page Count: Extensive (Digital Format - Equivalent to thousands of printed pages) Manual Type Type: Official Service and Repair Manual Software 📖 Manual Coverage Systems Covered Powertrain: Engine (M273), Transmission (7G-TRONIC PLUS) Chassis: Suspension (AIRMATIC), Steering, Brakes (ABS, ESP) Electrical: Wiring Diagrams, ECUs, Lighting, Audio, Climate Control Body And Interior: Body Panels, Doors, Seats, Dashboard, HVAC Procedures Included Maintenance: Oil Changes, Filter Replacements, Fluid Checks, Belt Inspections Diagnostics: Troubleshooting Guides, Diagnostic Trouble Codes (DTCs), Sensor Testing Repair: Component Removal and Installation, Overhauls, Adjustments Specifications: Torque Specifications, Tolerances, Diagnostic Data Technical Depth Depth: Comprehensive (from basic checks to complete engine and transmission rebuilds) 📊 Manual Specifications File Format File Type: Proprietary Software (Likely .exe or similar installer for digital manual) Print Quality Quality: High-resolution digital rendering, printable pages Binding Type Binding: N/A (Digital Software) Paper Type Paper Type: N/A (Digital Software) ⚙️ Engine Specifications Primary Engine Engine Type: Naturally Aspirated V8 Displacement: 4.7 Liters (4663 cc) Bore X Stroke: 92.9 mm x 86.0 mm Compression Ratio: 10.5:1 Performance Horsepower: 335 hp @ 6000 rpm Torque: 339 lb-ft (460 Nm) @ 2700-5000 rpm Fuel System Fuel Delivery: Electronic Fuel Injection (EFI), Sequential Multi-Port Recommended Fuel: Premium Unleaded Gasoline (91 Octane or higher) Engine Management Engine Control Unit: ME 9.7 (or similar generation) 🔧 Transmission Standard Transmission Type: 7-Speed Automatic (7G-TRONIC PLUS) Drive Type: All-Wheel Drive (4MATIC) Features Shift Modes: Comfort (C), Sport (S) Transmission Fluid Type: MB 236.14 (ATF) 📐 Dimensions Exterior Length: 198.3 inches (5037 mm) Width: 76.6 inches (1946 mm) Height: 72.4 inches (1839 mm) Wheelbase: 118.7 inches (3015 mm) Weights Curb Weight: Approximately 5,300 lbs (2400 kg) Gross Vehicle Weight Rating: Approximately 6,900 lbs (3130 kg) Cargo Cargo Volume Behind 3Rd Row: 14.3 cu ft (0.40 m³) Cargo Volume Behind 2Nd Row: 42.3 cu ft (1.20 m³) Cargo Volume Behind 1St Row: 83.3 cu ft (2.36 m³) 🛡️ Safety Features Ratings NHTSA Front Crash Rating: 5-Star (for 2011 model year where applicable) IIHS Top Safety Pick: Likely a recipient or high-scoring vehicle in its class Active Features ABS: Anti-lock Braking System (ABS) Esp: Electronic Stability Program (ESP) Traction Control: All-Season Traction Control (ASR) Brake Assist: Brake Assist System (BAS) Passive Features Airbags: Front, Side, Curtain Airbags (multi-stage deployment) Seatbelts: Pretensioning Seatbelts with Load Limiters 💡 Technology Features Infotainment Head Unit: COMAND APS (NTG 3.5) Display Size: 7-inch color display Features: Navigation system, CD/DVD player, AM/FM/Weatherband tuner, SD Card slot, Bluetooth connectivity Driver Assistance Adaptive Cruise Control: Optional DISTRONIC PLUS Parking Assist: Optional Parking Assist (PARKTRONIC) Blind Spot Monitoring: Optional Lane Keeping Assist / Blind Spot Assist Connectivity Bluetooth: Standard Bluetooth for hands-free calling and audio streaming Usb Aux: Optional Media Interface (for iPod, USB) 🔧 Maintenance Service Intervals Oil Change Interval: Every 10,000 miles or 12 months (whichever comes first), via 'Service A'/'Service B' indicators Transmission Service Interval: Recommended every 40,000-60,000 miles (fluid and filter) Fluid Specifications Engine Oil Type: Mobil 1 Synthetic 0W-40 (MB 229.5 specification) Coolant Type: Mercedes-Benz Approved Antifreeze/Coolant (e.g., MB 325.0 / G05) Brake Fluid Type: DOT 4 Plus (MB 331.0 specification) Known Issues Air Suspension: AIRMATIC system leaks (struts, lines), compressor failures Cooling System: Plastic coolant reservoir cracks, thermostat housing leaks Engine Oil Leaks: Valve cover gasket leaks, oil cooler seals (M273 specific) Transmission: Valve body issues, conductor plate failure (less common on 7G-TRONIC PLUS than earlier versions) Interior Electronics: Command NTG 3.5 issues, HVAC blower motor resistor failures 📚 Vehicle History Brand Heritage Brand Focus: Luxury, Performance, Innovation Model Evolution X164 Generation: First Generation (2006-2010) / Facelifted for 2011 Production Manufacturing Location: Tuscaloosa, Alabama, USA 🏆 Awards & Recognition Recognitions Segment Awards: Consistent positive reviews in luxury SUV segment for comfort and capability Safety Accolades: Recipient of various safety awards for its class and year