Coupling Up A Trailer - Mercedes-Benz 2013 CLA Owner's Manual

Towing a trailer
204
Before you can tow a trailer with your vehicle,
you must fold out the ball coupling.
The release wheel is located behind the left-
hand side trim panel in the boot.
X
To open the cover: turn handle : anti-
clockwise and fold down cover ; and
remove it.
X
Pull out release wheel =.
X
Turn release wheel = anti-clockwise as far
as it will go.
The ball coupling disengages and folds out
behind the rear bumper. Indicator
lamp ? flashes.
G
WARNING
If the ball coupling is not correctly engaged,
the trailer can detach. There is a risk of an
accident.
Always engage the ball coupling as described.
X
Pull the ball coupling in the direction of the
arrow until it engages in a vertical position.
Indicator lamp ? goes out. The power
socket folds down automatically.
The multifunction display shows the
Check trailer hitch lock
sage until the ball coupling is engaged.
X
Remove the protective covering from the
ball coupling and store it in a safe place.
X
Make sure that the ball of the ball coupling
is clean and that it is either greased or dry
(grease free), depending on the instruc-
tions for the trailer.

Coupling up a trailer

X
Make sure that the transmission is in posi-
tion P.
X
Apply the electric parking brake.
X
Position the trailer level behind the vehicle.
X
Couple up the trailer.
X
Establish the electric connection between
the vehicle and the trailer.
X
Check that the trailer lighting system is
working.
A trailer that is connected is recognised
only when the electrical connection is
established correctly and when the lighting
system is working properly. The function of
other systems, such as ESP
TRONIC also depends on this.
Uncoupling a trailer
G
WARNING
If you uncouple a trailer with an engaged over-
run brake, you could trap your hand between
display mes-
®
or PARK-