Segment:
Full-Size Luxury SUV
Target Audience:
Owners seeking to perform their own maintenance and repairs, independent repair shops, automotive enthusiasts.
Competitors 2009:
BMW X5, Audi Q7, Lexus LX 570, Cadillac Escalade, Lincoln Navigator
Vehicle Strengths:
Comfortable ride, spacious interior, powerful V8 engine (in some variants, but GL450 has V6), advanced safety features, Mercedes-Benz prestige.
Manual Value Proposition:
Provides official, accurate diagnostic and repair procedures, saving significant costs compared to dealership service. Essential for DIY maintenance and in-depth troubleshooting.
Primary Coverage:
Service, Repair, Maintenance, Diagnostics, Troubleshooting
Secondary Coverage:
Electrical Schematics, Wiring Diagrams, Specifications, Procedures
Estimated Pages:
Extensive (Software-based, not fixed page count)
Type:
Official Service and Repair Manual Software
Format:
Software (Digital)
Powertrain:
Engine (M272 V6), Transmission (7G-TRONIC automatic), Drivetrain (4MATIC all-wheel drive)
Chassis:
Suspension (AirMATIC), Brakes (ABS, ESP), Steering, Wheels and Tires
Electrical:
Engine Control Module (ECM), Transmission Control Module (TCM), Body Control Module (BCM), Lighting, Audio, Navigation, Climate Control, Power Accessories
Body And Interior:
Body Panels, Doors, Seats, Restraints (Airbags), HVAC System, Interior Trim
Maintenance:
Scheduled Maintenance, Fluid Changes (Oil, Coolant, Brake Fluid, Transmission Fluid), Filter Replacements, Lubrication
Diagnostics:
OBD-II Diagnostics, DTC (Diagnostic Trouble Code) interpretation, Component Testing, Sensor Data Analysis
Repair:
Engine Component Replacement (spark plugs, coils, sensors), Transmission Service, Brake System Overhaul, Suspension Component Replacement, Electrical Component Repair, Bodywork Repairs
Troubleshooting:
Systematic fault finding for common and uncommon issues, guided diagnostic trees
Depth:
Comprehensive: From basic fluid checks and filter replacements to in-depth engine rebuild procedures, transmission overhaul, and complex electrical system diagnostics and repair.
Digital Format:
Executable Software, potentially with PDF components. Searchable text, interactive diagrams.
Printability:
Printable pages for offline use and specific procedures.
Paper Quality:
N/A (Software)
Operating Systems:
Windows XP, Vista, 7 (typically; verify specific software requirements)
Engine Type:
Naturally Aspirated V6
Displacement:
4.6 Liters (4633 cc)
Engine Code Details:
M272 DE 46
Horsepower:
335 hp @ 6000 rpm (approximate, may vary slightly)
Torque:
325 lb-ft @ 3500 rpm (approximate, may vary slightly)
Injection Type:
Electronic Fuel Injection (EFI), Sequential Multi-Port Fuel Injection
Fuel Type:
Premium Unleaded Gasoline (91 Octane or higher recommended)
ECU Type:
ME 9.7 (Manufacturer specific)
NHTSA Overall Rating:
5-Star (Frontal and Side Impact - check specific year ratings)
IIHS Ratings:
Good (Frontal Offset, Side Impact - check specific year ratings)
Brake Assist:
Standard (BAS - Brake Assist System)
Electronic Stability Control:
Standard (ESP - Electronic Stability Program)
Traction Control:
Standard (ASR - Acceleration Slip Regulation)
Airbags:
Dual Frontal, Front Side-Impact, Side Curtain (3rd Row) Standard
Seatbelts:
3-point seatbelts with pretensioners and force limiters, active head restraints.
Head Unit:
COMAND APS (Cockpit Management and Data System) with optional navigation.
Audio System:
Harman Kardon LOGIC 7 surround sound system (optional).
Adaptive Cruise Control:
DISTRONIC PLUS (optional)
Parking Assistance:
PARKTRONIC (parking sensors front and rear), rearview camera (optional).
Bluetooth:
Bluetooth connectivity for hands-free calling (with optional module).
Auxiliary Input:
Standard AUX input for audio devices.
Oil Change Interval:
Variable (typically every 10,000 miles or 12 months, based on 'Active Service System' (ASSYST) and driving conditions)
Major Service A:
Typically around 20,000 miles: Includes inspection of various components, fluid checks, cabin filter replacement.
Major Service B:
Typically around 40,000 miles: Includes Service A items plus brake fluid change, potentially spark plug replacement (at higher intervals), and more thorough inspections.
Transmission Service:
Typically around 60,000 miles or as indicated by vehicle service computer. Manual specifies procedure for fluid and filter change.
Engine Oil Type:
Synthetic SAE 0W-40, MB-Approval 229.5
Coolant Type:
MB-Approved Antifreeze/Coolant (e.g., MB 325.0 or 326.0 - typically blue concentrate)
Brake Fluid Type:
DOT 4 Plus (MB-Approval 331.0)
Common Issues M272:
Timing chain wear/stretch (especially on earlier M272 engines), intake manifold flap issues, balance shaft wear. Manual provides diagnostic steps for these.
Airmatic Suspension:
Potential for air spring leaks, compressor failure, or valve block issues. Manual details diagnosis and repair.
Electronics:
Various electronic module failures or communication errors are possible. Manual's diagnostic section is critical.
Heritage:
Mercedes-Benz, established in 1926, is renowned for automotive innovation, engineering excellence, and luxury vehicles.
First Generation Start:
2006 (X164 platform)
2009 Updates:
Minor styling updates, technology enhancements, potential powertrain refinements (specifics in manual).
Manufacturing Location:
Tuscaloosa, Alabama, USA
Award Type 2009:
Often received accolades for luxury, safety, and capability in the SUV segment. Check specific automotive publications for 2009 model year awards.
Konsumen Reports Reliability:
Reliability ratings vary by year and specific components. Manual helps address potential weak points.
