Vehicle Segment:
Full-size Luxury SUV
Key Competitors:
BMW X5, Audi Q7, Lexus LX570, Cadillac Escalade
Vehicle Highlights:
Spacious interior, powerful V8 engine, luxurious appointments, advanced safety features, sophisticated ride and handling for its class.
Benefit To Owner:
Empowers owners and independent technicians with the same official factory information used by Mercedes-Benz dealerships, enabling accurate diagnosis and efficient repairs.
Systems Covered:
Engine, Transmission, Drivetrain, Suspension, Steering, Brakes, Electrical System, HVAC, Body & Chassis, Interior, Exterior, Safety Systems, Diagnostic Procedures, Maintenance Schedules, Technical Specifications.
Type:
Official Service and Repair Manual Software
Format:
Digital Software (likely PDF or proprietary executable)
Powertrain:
Comprehensive coverage of the 5.5L V8 engine (M273), 7-speed automatic transmission (7G-TRONIC), 4MATIC all-wheel-drive system.
Maintenance:
Routine maintenance, oil changes, filter replacements, fluid checks and changes, spark plug replacement, belt inspection and replacement.
Repair:
Detailed step-by-step repair procedures for all major vehicle systems, including engine overhaul, transmission rebuild, brake system repairs, suspension component replacement, electrical diagnostics and repair.
Troubleshooting:
Diagnostic trouble codes (DTCs) with explanations, symptom-based troubleshooting guides, electrical circuit diagrams and testing procedures.
Depth:
Factory-level technical information, including diagnostic procedures, component testing, specifications, and torque values for advanced repairs and diagnostics.
Engine Type:
Naturally Aspirated V8
Displacement:
5.5 Liters (5461 cc)
Bore X Stroke:
98.0 mm x 90.5 mm
Compression Ratio:
10.0:1
Valve Train:
DOHC, 4 valves per cylinder
Cylinder Block Material:
Aluminum Alloy
Cylinder Head Material:
Aluminum Alloy
Horsepower:
382 hp @ 6000 rpm
Torque:
391 lb-ft @ 2800-4800 rpm
Fuel Delivery:
Electronic Fuel Injection (EFI) / Sequential Port Injection
Fuel Type:
Premium Unleaded Gasoline (91 Octane or higher recommended)
Engine Oil Capacity:
8.5 Quarts (8.0 Liters)
Engine Oil Type:
Mobil 1 Synthetic 0W-40 (MB-Approval 229.5)
Spark Plug Part Number:
NGK Iridium (e.g., LFR6AIX-11 or equivalent OEM)
Transmission Type:
7-Speed Automatic with TouchShift
Transmission Model:
7G-TRONIC
Drivetrain:
4MATIC All-Wheel Drive (AWD)
Shift Modes:
Comfort (C) and Sport (S) modes
Transmission Fluid Type:
MB-Approval 236.14 (e.g., Pentosin ATF 134, Mercedes-Benz Genuine ATF)
Transmission Fluid Capacity:
Approximately 8.5-9.5 Liters (18.5-20 US quarts) for a complete fill/flush
Length:
199.9 inches (5077 mm)
Width:
76.5 inches (1943 mm)
Height:
72.4 inches (1839 mm)
Wheelbase:
118.5 inches (3010 mm)
Seating Capacity:
7 passengers
Cargo Volume Behind 3Rd Row:
14.3 cu ft (0.40 m³)
Cargo Volume Behind 2Nd Row:
41.0 cu ft (1.16 m³)
Cargo Volume With 2Nd And 3Rd Rows Folded:
83.3 cu ft (2.36 m³)
Curb Weight:
5,445 lbs (2470 kg)
Gross Vehicle Weight Rating Gvwr:
7,077 lbs (3210 kg)
Towing Capacity:
7,700 lbs (3500 kg) (with optional trailer hitch)
NHTSA Front Crash Test:
5-Star Rating
NHTSA Side Crash Test:
5-Star Rating
IIHS Rollover Rating:
Four-star rating (based on 2008 model year testing, excluding ESC role)
Electronic Stability Program Esp:
Standard (ADAPTIVE ESP®)
Anti Lock Braking System ABS:
Standard
Brake Assist System Bas:
Standard
Traction Control System TCS:
Standard (ASR)
Airbags:
Front, front-side, rear-side airbags, and curtain airbags for all three rows.
Seatbelts:
3-point seatbelts with pretensioners and force limiters.
Child Seat Anchors:
LATCH (Lower Anchors and Tethers for Children) system.
Audio System:
COMAND APS (Cockpit Management and Navigation System) with integrated radio, CD/DVD player, and optional Harman Kardon surround sound system.
Navigation:
DVD-based navigation system.
Connectivity:
Bluetooth connectivity for hands-free calling and audio streaming.
Parking Assist:
PARKTRONIC parking sensors (front and rear).
Cruise Control:
Standard cruise control with SPEEDTRONIC variable speed limiter.
Lighting:
Bi-Xenon headlights with active curve illumination, LED taillights.
Keyless Entry Start:
KEYLESS-GO (optional).
Oil Change Interval:
Every 10,000 miles (16,000 km) or 1 year, whichever comes first (using synthetic oil).
Transmission Fluid Service:
Typically recommended every 40,000-60,000 miles (64,000-97,000 km), consult manual for exact interval and procedure.
Engine Air Filter Replacement:
Inspect every 20,000 miles (32,000 km), replace as needed. Often recommended with major service intervals.
Cabin Air Filter Replacement:
Every 20,000 miles (32,000 km) or annually.
Brake Fluid Flush:
Every 2 years (regardless of mileage).
Coolant Flush:
Initial change at 100,000 miles (160,000 km), then every 50,000 miles (80,000 km) thereafter (using MB-approved coolant).
Brake Fluid Type:
DOT 4 Plus (MB-Approval 331.0)
Coolant Type:
Mercedes-Benz Approved Antifreeze/Coolant (e.g., ZEREX G-48 or equivalent, typically a blue-green silicate-based coolant)
Common Problems:
Air suspension leaks (air springs, compressor), power steering leaks, catalytic converter issues, HVAC blower motor failure, crankcase ventilation system issues (PCV valve).
Oil Consumption:
Some M273 engines may exhibit higher than normal oil consumption; proper diagnosis is key.
Manufacturer History:
Mercedes-Benz, a globally recognized German automotive manufacturer with a long history of producing luxury, performance, and innovative vehicles.
First Generation:
The GL-Class (X164) was introduced for the 2007 model year, representing Mercedes-Benz's entry into the large luxury SUV segment.
2008 Model Year Updates:
The 2008 model year saw minor refinements, with the GL550 being the flagship model featuring the larger 5.5L V8 engine.
Manufacturing Location:
Tuscaloosa, Alabama, USA
Safety Awards:
Consistently received high safety ratings from government agencies like NHTSA.
Vehicle Segment Accolades:
Praised for its comfortable ride, spacious interior, and robust powertrain within the luxury SUV segment.
