Mercedes-Benz GLK-Class 2015 Owners Manual - Manual (Page 219)

pay attention to the respective lowest val-
ues.
R
The trailer drawbar load on the ball coupling
must be added to the rear axle load to avoid
exceeding the permissible gross axle
weight. The permissible gross vehicle
weight is indicated on the identification
plate on the B-pillar on the driver's side of
the vehicle.
i Mercedes-Benz recommends a trailer
load where the trailer drawbar noseweight
accounts for 8% to 15% of the trailer's per-
missible gross weight.
i The weight of other accessories, passen-
gers and loads reduces:
R
the permissible trailer load
R
the permissible noseweight that your
vehicle can tow
Checking the vehicle and trailer weight
R To ensure compliance of the weight of the
towing vehicle and the trailer with the max-
imum permissible values, have the vehicle/
trailer combination (towing vehicle includ-
ing driver, passenger, load and fully laden
trailer) weighed on a calibrated weigh-
bridge.
R
Check the gross axle weight rating of the
front and rear axles, the gross weight of the
trailer and trailer drawbar load.
Removing the ball coupling
X Observe the manufacturer's installation
instructions.
X
Press the protective cap into the ball cou-
pling recess.
X Make sure that the protective cap is firmly
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:
R brake sharply
R change direction suddenly
R are involved in an accident
X Observe the manufacturer's installation
instructions.
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 max-
imum 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.
Towing a trailer
217
Driving
and
parking
Z