Key Features

The 2015 G550 SUV
MSRP $115,400*
Passenger capacity
5 adults
Trunk capacity
75.1 cu ft
Transmission type
7-speed automatic
5.5L V-8
382 hp @ 6,000 rpm
Acceleration, 0 - 60 mph
6.0 sec
City fuel economy
12 mpg
Highway fuel economy
15 mpg

Interior Dimensions


42.2 in
52.5 in
Shoulder room
53.7 in


40.0 in
41.9 in
Shoulder room
56.3 in
Max. cargo capacity
75.1 cu ft

More Exterior Dimensions

Overall height
76.8 in
Overall length
186.5 in (including spare tire and brush guard)
Overall width
80.9 in(with mirrors)
112.2 in
Curb weight
5,578 lbs


  • Engine, Drivetrain, and Performance

    Engine, Drivetrain, and Performance

    Net power
    382 hp @ 6,000 rpm
    Net torque
    391 lb-ft @ 2,800-4,800 rpm
    Compression ratio
    Diecast alloy block and alloy heads
    Fuel requirement
    Premium unleaded gasoline
    Fuel capacity
    25.4 gal
    Fuel economy
    City estimate
    12 mpg
    Highway estimate
    15 mpg
    Emission certification
    Bin5 ULEV II
    Automatic transmission
    7-speed automatic
    Drive configuration
    Permanent all-wheel drive with 2-speed transfer case
    Final-drive ratio
    6.0 sec
  • Chassis and Traction Control/Stability Systems

    Chassis and Traction Control/Stability Systems

    Rigid front and rear axles with longitudinal and transverse links, coil springs and gas-pressurized shock absorbers. Front stabilizer bar.
    Steering type
    Recirculating ball with electromechanical power assist.
    Turning circle
    44.6 ft, curb-to-curb
    Traction Control & Stability
    Electronic Stability Program (ESP)
    This safety breakthrough first introduced by Mercedes-Benz continually monitors your driving inputs and the vehicle's motion to help keep it going in your intended direction, especially in corners and during evasive maneuvers. If it detects wheelspin, severe understeer (plowing), or oversteer (fishtailing), ESP® can brake individual wheels and reduce engine power to help bring the vehicle under control.[*11]
    Permanent all-wheel drive
    Full-time all-wheel drive includes a 2-speed transfer case and three sequentially locking differentials, to help drivers tackle a variety of terrains and conditions. With its 7-speed automatic transmission and two transfer-case ranges, the G-Class offers the widest span of gear ratios of any SUV.
    4-wheel Electronic Traction System (4-ETS)
    The G-Class all-wheel drive incorporates our 4-wheel Electronic Traction System (4-ETS®), which monitors for the first sign of wheel slip and responds to ensure torque is sent to the wheels with the best grip, even if that's only one wheel.[*4]
  • Brakes, Wheels, and Tires

    Brakes, Wheels, and Tires

    Adaptive braking technology
    Adaptive braking technology integrates two useful advances. During uphill starts, Hill-Start Assist helps prevent unwanted rollback. And a brake HOLD feature can make long red lights, stopped traffic, or even some off-road maneuvers a little easier.
    Antilock Braking System (ABS)
    ABS senses impending wheel lockup under heavy braking and pumps the front brakes individually or the rear brakes together. This intelligent system can pump the brakes as needed up to 30 times per second, to prevent lockup and preserve the driver's steering ability.
    Brake Assist (BAS®)
    Brake Assist senses emergency braking via the speed at which the driver presses the brake pedal and immediately applies maximum available power boost. Brake Assist can potentially reduce the overall stopping distance by eliminating the delay caused by a common human tendency not to brake hard enough, soon enough. Letting up on the brake pedal releases Brake Assist.[*10]
    18-inch twin 5-spoke  (7.5x18")
    265/60R18, all-season
  • Safety and Security Systems

    Safety and Security Systems

    Safety Features
    Mercedes-Benz mbrace®
    From your car, your computer or your compatible smartphone, mbrace offers the industry's most comprehensive range of features for more connected, safe and productive drive time. From making your everyday life easier to helping out in an emergency, mbrace combines advanced cloud-based and GPS technology with 24-hour support from helpful experts. Three mbrace packages are offered, and every 2015 Mercedes-Benz includes a 6-month mbrace trial subscription.[*12][*13][*14]
    Restraint Systems
    Integrated Restraint System
    An advanced system of 4 air bags offers 6-way occupant protection. Dual two-stage front air bags, and side curtain air bags for all four outboard seating positions are standard.[*5]
    Side Curtain Air Bags
    In a side impact exceeding a preset threshold, a multi-chamber air bag deploys along the front and rear side windows on the affected side of the vehicle. An integrated rollover sensor automatically deploys the Emergency Tensioning Devices (ETDs) and, if deemed necessary, the side curtain air bags in the event of a detected rollover.[*5]
    Seat belt technology
    Provided at all five seats, 3-point seat belts are arguably our most important passive safety feature. If a collision exceeds a preset threshold, Emergency Tensioning Devices (ETDs) instantly remove slack from the front and rear outboard seat belts. Belt force limiters allow a slight amount of give in the ETD-equipped seat belts, to reduce the peak seat-belt forces on the occupant.
    Occupant Classification System (OCS)
    OCS automatically turns the front passenger's front air bag on or off and adjusts the air bag inflation rate based on the weight category determined by weight sensor readings from the front passenger seat.[*6]
    ISOFIX / Universal LATCH system (Lower Anchors and Tethers for Children)
    Standardized child-seat attachments are provided at both outboard rear seating positions. Selectable passenger seat-belt retractors help secure child seats.[*5]
    Locking & Security
    The SmartKey remote control integrates remote door locks, a removable valet key, and a remote panic alarm. You may selectively unlock only the driver's door and fuel filler, or all five doors plus the fuel filler.
    Locator lighting
    Locator lighting uses the car's lights to help illuminate a return path when the car is remote-unlocked in darkness. Unlocking the car also activates the illuminated entry system.
    Night security illumination
    Night security illumination uses the car's exterior lights to help illuminate a path after parking.
    Driver-programmable driveaway locking
    Automatically locks the doors when the car reaches 9 mph.
    Antitheft alarm with remote panic feature
    The standard antitheft alarm system is armed automatically when you lock your Mercedes from the outside. It sounds the horn and flashes the exterior lights if a door or the hood is opened without first unlocking the vehicle. You can also sound the alarm by pressing the red "panic" button on your SmartKey remote when you're within range of your vehicle.
    Integrated 3-button garage door control
    Compatible with HomeLink® components and some other systems.
    mbrace Remote Door Unlock
    Allows remote unlocking of the vehicle via the mbrace Mobile App or via telephone.
    mbrace GPS-based Stolen Vehicle Recovery
    Helps law enforcement agencies track and recover stolen vehicles.
    mbrace Antitheft Alarm Notification
    Alerts Mercedes-Benz to contact vehicle owner if antitheft alarm sounds.