Decoupling a trailer
G
WARNING
If you uncouple a trailer with the overrun
brake engaged, you could trap your hand
between the vehicle and the trailer drawbar.
There is a risk of injury.
Do not uncouple a trailer if the overrun brake
is engaged.
!
Do not disconnect a trailer with an
engaged overrun brake. Otherwise, your
vehicle could be damaged by the
rebounding of the overrun brake.
X
Make sure that the automatic transmission
is set to position P.
X
Apply the vehicle's parking brake.
X
Close all doors and the tailgate.
X
Apply the trailer's parking brake.
X
Remove the trailer cable and decouple the
trailer.
Permissible trailer loads and drawbar
loads
Weight specifications
The gross trailer weight is calculated by
adding the weight of the trailer to the weight
of the load and equipment on the trailer.
You will find installing dimensions and loads
under "Technical data" (
Y
page 376).
Loading a trailer
R
When loading the trailer, make sure that
neither the permissible gross weight of the
trailer nor the gross vehicle weight is
exceeded. The permissible gross vehicle
weight is indicated on the identification
plate on the B-pillar on the driver's side of
the vehicle.
You can find the maximum permissible
values on the type plates of your vehicle
and the trailer. When calculating how much
weight the vehicle and trailer may carry,
pay attention to the respective lowest
values.
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
permissible gross weight.
i
The weight of other accessories,
passengers 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
maximum permissible values, have the
vehicle/trailer combination (towing vehicle
including driver, passenger, load and fully
laden trailer) weighed on a calibrated
weighbridge.
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
coupling recess.
X
Make sure that the protective cap is firmly
in place.
216
Towing a trailer
Dri
ving
an
d
pa
rki
ng
Summary of Contents for GLK 250 BlueTEC
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