Removing; Storing; Power Supply; Removing The Ball Coupling - Mercedes-Benz GLK-Class Operator's Manual

accounts for 8% to 15% of the trailer's
permissible gross weight.
i
The weight of other accessories,
passengers and loads reduces:
the permissible trailer load
R
the permissible noseweight that your
R
vehicle can tow
Checking the vehicle and trailer weight
To ensure compliance of the weight of the
R
towing vehicle and the trailer with the
maximum permissible values, have the
vehicle/trailer combination (towing vehicle
including driver, passenger, load and fully
laden trailer) weighed on a calibrated
weighbridge.
Check the gross axle weight rating of the
R
front and rear axles, the gross weight of the
trailer and trailer drawbar load.

Removing the ball coupling

Observe the manufacturer's installation
X
instructions.
Press the protective cap into the ball
X
coupling recess.
Make sure that the protective cap is firmly
X
in place.

Storing the ball coupling

G
WARNING
Do not carry the ball coupling in the vehicle
interior if it is not secured.
Otherwise, you and others could be injured by
the ball coupling being thrown around if you:
brake sharply
R
change direction suddenly
R
are involved in an accident
R
Observe the manufacturer's installation
X
instructions.
Towing a trailer
Trailer power supply
The trailer socket of your vehicle is equipped
at the factory with a permanent power supply.
The permanent power supply is supplied via
trailer socket pin 4.
! You can connect accessories with a
maximum power consumption of 240 W to
the permanent power supply.
You must not charge a trailer battery using
the power supply.
The trailer's permanent power supply is
switched off in the event of low vehicle supply
voltage and after six hours at the latest.
A qualified specialist workshop can provide
more information about installing the trailer
electrics.
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Z