Segment:
Full-Size Luxury SUV
Target Audience:
Owners seeking to perform maintenance and repairs, independent repair shops specializing in European vehicles.
Competitors:
BMW X5, Audi Q7, Lexus LX, Cadillac Escalade.
Vehicle Highlight:
Spacious and luxurious interior, powerful yet efficient diesel engine, advanced safety and technology features, standard 4MATIC all-wheel drive.
Manual Value:
Provides official, detailed technical information essential for accurate and efficient servicing of the GL320.
Diagnostic Troubleshooting:
Comprehensive diagnostics and troubleshooting for all major systems.
Maintenance:
Detailed scheduled maintenance procedures and intervals.
Repair Procedures:
Step-by-step repair instructions for mechanical and electrical components.
Parts Information:
Identification and specifications for replacement parts.
Type:
Official Service & Repair Manual Software
Format:
Software (Downloadable)
Powertrain:
Engine (OM642 Diesel), Transmission (7G-TRONIC Automatic), Drivetrain (4MATIC All-Wheel Drive).
Chassis:
Suspension (AirMatic DC), Steering, Brakes (ABS, ESP), Wheels & Tires.
Electrical Electronics:
Body Control Module (BCM), Gateway Module, Lighting, Instrument Cluster, HVAC Control, Infotainment (COMAND), SRS (Airbag) System, CAN Bus System.
Body Interior:
Exterior Body Panels, Doors, Interior Trim, Seats, Glass, Sunroof.
Engine Mechanical:
Engine teardown, assembly, component testing (injectors, glow plugs, turbocharger), timing procedures.
Engine Management:
Fuel injection system diagnostics and repair, emissions control system repair, DPF regeneration procedures.
Transmission Service:
Transmission fluid and filter change, torque converter removal/installation, valve body diagnostics.
Brake System:
Brake pad and rotor replacement, caliper service, brake fluid flush and bleed, ABS/ESP component testing.
Suspension Steering:
Air suspension strut replacement, control arm bushings, power steering pump and rack service.
Electrical Diagnostics:
Wiring diagrams, component location, troubleshooting power distribution issues, sensor testing.
HVAC Service:
Refrigerant system service, blower motor replacement, HVAC control module diagnostics.
Body Repair:
Panel alignment, door mechanism repair, glass replacement, bumper repair.
Troubleshooting Guides:
Symptom-based troubleshooting trees for common drivability and electrical issues.
Depth:
Comprehensive; covers basic maintenance, component-level repair, system diagnostics, and complete rebuilds.
Diagnostic Tools:
Reference to Mercedes-Benz proprietary diagnostic tools (e.g., STAR Diagnosis) and general OBD-II scanners.
Specifications Data:
Torque specifications, fluid capacities, electrical schematics, component tolerances.
Length:
198.3 in (5,037 mm)
Width:
76.4 in (1,940 mm)
Height:
72.4 in (1,839 mm)
Wheelbase:
115.3 in (2,928 mm)
Curb Weight:
Approx. 5,027 lbs (2,280 kg)
Gross Vehicle Weight Rating:
Approx. 6,504 lbs (2,950 kg)
NHTSA Front Crash Test:
5-Star (Driver and Passenger)
IIHS Side Impact Test:
Good
Stability Control:
Electronic Stability Program (ESP) with Crosswind Assist.
Traction Control:
4-wheel Electronic Traction System (4-ETS).
Braking Assist:
Anti-lock Braking System (ABS), Brake Assist (BAS).
Airbags:
Front airbags, side airbags, curtain airbags, front and rear side-impact protection.
Seatbelts:
3-point inertia-reel seat belts with belt tensioners and force limiters.
Infotainment System:
COMAND (Cockpit Management and Navigation) system with CD/DVD player, AM/FM radio, optional satellite radio, and Bluetooth connectivity.
Navigation:
Optional GPS navigation system.
Audio:
Premium sound system options available (e.g., Harman Kardon).
Parking Assist:
Optional PARKTRONIC parking sensors (front and rear).
Cruise Control:
Standard cruise control with speed limiter.
Bluetooth:
Optional Bluetooth for hands-free calling.
Oil Change:
Flexible, typically every 10,000 to 13,000 miles or 1 year, depending on driving conditions (refer to manual for specific ASSYST Plus prompts).
Transmission Fluid Service:
Recommended at 60,000 miles (e.g., 7G-TRONIC fluid and filter).
Coolant Service:
First change at 150,000 miles, then every 75,000 miles.
Diesel Particulate Filter:
Requires periodic regeneration, which is managed by the engine control unit. Manual provides guidance on monitoring DPF status.
Engine Oil:
MB 229.51 or MB 229.52 (5W-30 or 0W-30 Synthetic Diesel Oil).
Transmission Fluid:
MB 236.14 (ATF for 7G-TRONIC).
Coolant:
MB 325.0 (Antifreeze/Coolant, blue color).
Brake Fluid:
DOT 4 Plus (MB Spec 331.0).
Diesel Particulate Filter:
Clogging due to short trips or incomplete regenerations, leading to reduced power and potential warning lights.
Air Suspension:
Leaking air springs (struts/bags), compressor failure, leading to uneven ride height or vehicle sagging.
Adblue System:
Issues with the AdBlue injector or sensor in later models, though less common for 2007 GL320 Diesel (Euro IV).
Glow Plug Module:
Failure of the glow plug control module or individual glow plugs can affect cold starting.
Heritage Note:
Mercedes-Benz has a long-standing reputation for luxury, engineering, and safety since its inception.
Generation Introduction:
The X164 generation GL-Class was introduced in 2006 as Mercedes-Benz's first full-size luxury SUV.
Market Placement:
Positioned as a larger, more luxurious alternative to the M-Class, offering three rows of seating.
Production Period:
2006-2012 (X164 generation).
Manufacturing Location:
Tuscaloosa, Alabama, USA.
