Mercedes-Benz E-Class 2010 Owner's Manual page 189

Trailer towing
186
unavailable See Owner's Manual mes-
sage appears in the multifunction display.
Trailer towing
Folding out the ball coupling
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.
G
Risk of accident
Make sure that the ball coupling is engaged,
either in its folded-out or folded-in position,
and that the indicator lamp is off.
Do not turn the release wheel when a trailer
is coupled up. Otherwise, the trailer might
detach.
To open the cover: turn handle : anti-
X
clockwise and fold down cover ;.
Pull out release wheel ;.
X
Turn release wheel ; anti-clockwise until
X
the ball coupling releases and folds out
from under the rear bumper. Indicator
lamp : flashes.
Pull the ball coupling in the direction of the
X
arrow until it engages in a vertical position.
Indicator lamp : goes out. The power
socket folds down automatically.
The multifunction display shows the
Trailer hitch Check lock mech. mes-
sage until the ball coupling is engaged.
Remove the protective cap from the ball
X
coupling and store it in a safe place.
Make sure that the ball of the ball coupling
X
is clean and that, depending on the trailer
specification, it is greased or dry (without
grease) when used.
Coupling up a trailer
G
Risk of injury
Do not disconnect a trailer with an engaged
overrun brake. Otherwise, your hand could
become trapped between the bumper and
trailer drawbar.
Make sure that the transmission is in posi-
X
tion P.
Apply the parking brake.
X
Position the trailer level behind the vehicle.
X
Couple up the trailer.
X
Establish the electrical connection
X
between the vehicle and the trailer.