Mercedes-Benz R-Class Owner's Manual page 239

Operation
Trailer towing*
Cover
1
Remove cover 1.
X
Take the ball coupling and the key from the
X
stowage well under the luggage compart-
ment floor ( page 250).
Y
Protective cap
1
236
Pull protective cap 1 underneath the
X
bumper vertically downwards in the direc-
tion of the arrow and out of the ball coupling
recess.
Place protective cap 1 in the stowage well
X
under the luggage compartment floor.
Key
1
Protective cap
2
Pull protective cap 2 off the lock in the
X
handwheel.
Insert key 1 into the lock in the hand-
X
wheel.
Turn key 1 anti-clockwise.
X
i
The key remains inserted when you
remove the ball coupling.
Ball coupling recess
3
4 Handwheel
Pull handwheel 4 away from the ball cou-
X
pling in the direction of the arrow and turn
it clockwise until it engages.
The white dot on the ball coupling is aligned
with the red area on the handwheel.
Insert the ball coupling vertically up into
X
ball coupling recess 3 in the direction of
the arrow until it engages.
* optional