Mercedes-Benz G 550 2015 Operator's Manual page 141

Driving tips
If the trailer swings from side to side:
Do not accelerate.
X
Do not counter-steer.
X
Brake if necessary.
X
Maintain a greater distance from the vehi-
R
cle in front than when driving without a
trailer.
Avoid braking abruptly. If possible, brake
R
gently at first to allow the trailer to run on.
Then, increase the braking force rapidly.
The values given for gradient-climbing
R
capabilities from a standstill refer to sea
level. When driving in mountainous areas,
note that the power output of the engine
and, consequently, the vehicle's gradient-
climbing capability, decreases with
increasing altitude.
Assembling the ball coupling
Assembling the ball coupling
G
WARNING
The ball coupling can be damaged if the nut on
the ball coupling is tightened using the incor-
rect torque. As a result, the trailer may
detach. There is a risk of an accident.
Immediately after installing, have the tighten-
ing torque checked at a qualified specialist
workshop.
! Mercedes-Benz recommends that you
only use ball couplings tested and
approved for use on Mercedes-Benz vehi-
cles. This helps to avoid damage to the
vehicle.
Observe the manufacturer's installation
instructions if you use a ball coupling other
than the one supplied.
Towing a trailer
Screw in ball coupling : as far as it will go
X
through the hole of ball coupling carrier ;.
Slide securing bolt ? over the thread of
X
ball coupling = as far as it will go.
Screw on nut A as far as it will go.
X
Using a torque wrench, tighten nut B with
X
a torque of 516 lb-ft (700 Nm).
Check that thread C protruding below nut
X
B has the minimum required length of
0.32 in (8 mm).
Check the assembled ball coupling for cor-
X
rect installation.
139
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