Mercedes-Benz GLC Owner's Manual page 308

Until the ball coupling securely engages and
locks in a vertical position:
indicator lamp ; flashes
R
the Trailer Trailer coupling coupling extending...
R
sage appears in the multifunction display.
The ball coupling swivels back into the out-of-
use position when:
switch : is pulled again briefly during
R
swivelling
you drive off before the
R
pling extending... pling extending...
disappeared from the multifunction display
the ball coupling encounters an obstacle in
R
the swinging range
Swinging out using the switch in the tail-
gate:
Make sure that the vehicle is stationary.
X
Open the tailgate.
X
Pull switch : briefly.
X
After a short time the ball coupling swings
out from under the rear bumper. It can take
up to seven seconds before the ball cou-
pling visibly swings out.
Remove the protective covering from the
X
ball coupling and store it in a safe place.
Until the ball coupling securely engages and
locks in a vertical position:
indicator lamp ; flashes
R
the Trailer coupling Trailer coupling extending...
R
sage appears in the multifunction display.
extending... mes-
Trailer cou‐ Trailer cou‐
display message has
extending... mes-
The ball coupling swivels back into the out-of-
use position when:
switch : is pulled again briefly during
R
swivelling
you drive off before the
R
pling extending... pling extending...
disappeared from the multifunction display
the ball coupling encounters an obstacle in
R
the swinging range
Further information:
Display messages when towing a trailer
R
( page 369)
Y
Problems when swivelling the ball coupling
R
( page 309)
Y
Problems when swivelling the ball coupling;
R
see the "Problems when towing a trailer"
section in the Digital Owner's Manual
Coupling up a trailer
Make sure that the transmission is in posi-
X
tion P.
Apply the electric parking brake.
X
Position the trailer horizontally behind the
X
vehicle.
Couple up the trailer.
X
Establish the electric connection between
X
the vehicle and the trailer.
Check that the trailer lighting system is
X
working.
Push the combination switch upwards/
X
downwards and check whether the corre-
sponding turn signal on the trailer is flash-
ing.
A connected trailer is only recognised when
the electrical connection is established
correctly and when the lighting system is
working properly. The functioning of other
®
systems, e.g. ESP
Parking Assist, Active Blind Spot Assist or
Lane Keeping Assist also depends on this.
Towing a trailer
Trailer cou‐ Trailer cou‐
display message has
, PARKTRONIC, Active
Z
305