🏷️ Basic Information Identification Make: Mercedes-Benz Model: GL450 Year: 2007 Codes Chassis Code: X164 👋 Introduction Market Position Vehicle Segment: Full-size Luxury SUV Competitive Analysis Key Competitors: BMW X5, Audi Q7, Lexus LX, Cadillac Escalade, Land Rover LR3/LR4 Key Features Unique Selling Points: Premium interior materials, advanced safety features, powerful V8 engine, sophisticated suspension (AIRMATIC), spacious seating for seven passengers. Manual Value Proposition Benefit To Owner: Empowers owners and independent mechanics with accurate, factory-level repair information to maintain and repair the vehicle effectively, saving time and money. 📋 Manual Details Coverage Areas Systems Covered: Engine, Transmission, Drivetrain, Suspension, Steering, Brakes, Electrical System, Climate Control, Bodywork, Chassis, Diagnostic Procedures, Maintenance Schedules, Troubleshooting Page Count Estimated Pages: 1500+ Manual Type Type: Official Factory Service & Repair Manual Software Language Language: English Format Format: Software/Digital (Likely PDF-based for online delivery) 📖 Manual Coverage Systems Covered Engine Mechanical: Detailed overhaul procedures for M273 V8 engine, including cylinder head, block, crankshaft, pistons, connecting rods, timing system, lubrication system, cooling system, fuel injection, and emission control systems. Engine Electrical: Engine control module (ECM) diagnosis, ignition system, fuel delivery, starter system, alternator, sensor operations (MAF, O2, crankshaft position, camshaft position), and wiring diagrams. Transmission: 722.9 7G-TRONIC automatic transmission overhaul, fluid service, torque converter, valve body, electronic control unit (TCU) diagnosis, and mechatronics unit. Drivetrain: All-Wheel Drive (4MATIC) system, differential service, transfer case operation, driveshaft and CV joint maintenance, and wheel bearing replacement. Suspension: Front and rear independent suspension systems, shock absorber/strut replacement, spring service, control arm and ball joint replacement, and air suspension (AIRMATIC) component troubleshooting and repair. Steering: Hydraulic power steering system diagnosis, steering rack repair, power steering pump service, and steering column adjustments. Brakes: Front and rear disc brake system service, brake pad and rotor replacement, hydraulic system bleeding, ABS/BAS/ESP component testing and repair, and parking brake mechanisms. Electrical Lighting: Headlight, taillight, interior lighting, and accessory lighting service. Bulb replacement procedures and electrical diagnostics for lighting circuits. Climate Control: HVAC system operation, refrigerant charging, compressor replacement, evaporator and condenser service, blower motor, climate control module diagnosis, and cabin air filter replacement. Body Interior: Door panel removal, seat adjustment and removal, interior trim panel replacement, sunroof operation and repair, and tailgate mechanisms. Body Exterior: Front and rear bumper removal and installation, fender replacement, hood and tailgate alignment, door and mirror replacement, and paint repair guidelines. Safety Systems: Airbag system component identification, SRS module diagnosis, seat belt pre-tensioner replacement, and safety sensor calibration. Infotainment Navigation: COMAND system operation, radio and speaker troubleshooting, navigation system updates, and telematics (TELE AID) diagnosis. Procedures Included Preventative Maintenance: Detailed schedules for oil changes, filter replacements (oil, air, cabin, fuel), spark plug replacement, coolant flushes, brake fluid changes, and transmission fluid service. Diagnostics Troubleshooting: Systematic diagnostic trees, fault code interpretation (OBD-II), component testing procedures, and common problem diagnosis for electrical and mechanical systems. Repair Overhaul: Step-by-step instructions for engine, transmission, suspension, brake, and drivetrain component removal, disassembly, inspection, repair, and reassembly. Component Replacement: Detailed guides for replacing critical components such as fuel pumps, radiators, alternators, starters, mass airflow sensors, oxygen sensors, brake calipers, and suspension arms. Calibration Reset: Procedures for resetting service indicators, recalibrating steering angle sensors, and other electronic system resets after component replacement. Technical Depth Depth: Comprehensive. Covers from basic scheduled maintenance and fluid changes to complete engine and transmission overhauls, advanced diagnostics, and component-level repair. 📊 Manual Specifications File Format Software Requirements: Requires compatible operating system (e.g., Windows) and software to open/run the digital manual. Print Quality Digital Resolution: High-resolution digital images and diagrams, suitable for on-screen viewing and printing. Binding Type Binding: N/A (Digital Software) Paper Type Paper Type: N/A (Digital Software) ⚙️ Engine Specifications Primary Engine Engine Code: M273.923 Engine Type: 4.6L (4663cc) Naturally Aspirated V8 Performance Horsepower: 335 hp @ 6000 rpm Torque: 339 lb-ft (460 Nm) @ 2700-5000 rpm Fuel System Fuel Delivery: Electronic Fuel Injection (EFI) with Sequential Port Injection Fuel Type: Premium Unleaded Gasoline (91+ octane recommended) Engine Management ECM Type: ME 9.7 Engine Control Module Cooling System Coolant Type: MB 325.0 / 326.0 (Glysantin G48 or equivalent - typically blue/green) Lubrication System Oil Type: MB 229.5 (e.g., Mobil 1 0W-40, Castrol Syntec 0W-40) Oil Capacity: 8.5 Liters (8.9 US Quarts) 🔧 Transmission Standard Transmission Type: 7-speed Automatic (7G-TRONIC) Transmission Code: 722.9 Optional Optional Transmission: N/A (7-speed was standard) Features Drive Modes: Comfort (C), Sport (S), Manual (M) shifting modes Fluid Specifications Transmission Fluid Type: MB 236.14 (ATF LT 71141) Transmission Fluid Capacity: Approx. 9.5 Liters (for total fill; 7.5L for dry fill) 📐 Dimensions Exterior Length: 198.6 inches (5045 mm) Width: 76.6 inches (1945 mm) Height: 72.4 inches (1838 mm) Wheelbase: 115.2 inches (2926 mm) Weights Curb Weight: 5,115 lbs (2,320 kg) Gross Vehicle Weight Rating: 6,810 lbs (3,089 kg) Cargo Cargo Volume Behind 3Rd Row: 14.3 cu ft (405 L) Cargo...