Towing bracket
Fitting the removable towing cou-
pling
Fig. 157 Overview: Deta
chable ball coupling.
1
Protective cap.
2
Ball head.
3
Retaining balls.
4
Catch (ball) for locking element.
5
Centring device.
6
Shank.
7
Lock cover.
8
Key.
9
Handwheel.
10
Gap (pre-tensioned ball coupling).
11
White marking on ball coupling.
12
Green marking on handwheel.
13
Red marking on handwheel.
The removable ball coupling is located in
a stowa
ge box under the right-hand front
seat.
Step 1: Preparations
1. Move the right-hand front seat as far
back as possible → page 94, then open
the lock and remove the stowage box.
2. Note down the number stamped on the
key before using the removable ball
coupling for the first time. You will need
this number if you have to acquire a re-
pla
cement key.
3. Remove the sealing plug from the
mount for the ball coupling under the
bumper. Stow the sealing plug securely
in the vehicle.
4. Check to ensure that the mounting,
handwheel → Fig. 157
9 , shank 6 and
the retaining b
alls
3 of the ball cou-
pling are all clean and not dama
ged
→
. Clean if necessary.
S
tep 2: Pre-tensioning the ball coupling
The ball coupling cannot be fitted properly
unless it is pre-tensioned.
1. Grasp the ball coupling underneath the
ball coupling → Fig. 157
2 with one
hand.
2.
R
emove the lock cap → Fig. 157
7 from
the lock and insert the key 8 into the
lock.
3.
T
urn the key → Fig. 157
8 anticlockwise.
4
. Use your other hand to pull out the
handwheel → Fig. 157
9 in the direction
of arrow A and hold it in this position
→ .
5.
T
urn the handwheel → Fig. 157
9 in the
direc
tion of arrow
B until it engages.
T
he ball coupling is now pre-tensioned.
The red marking
13 on the handwheel
must point towards the white marking
11 on the ball coupling. The handwheel
protrudes clearly from the b
all coupling.
The gap between them is approximate-
ly 4 mm
10 .
6
. Check to see whether all retaining balls
→ Fig. 157
3 can be pressed fully into
the b
all coupling shank
6 .
S
tep 3: Attaching the pre-tensioned
ball coupling to the vehicle.
Do not touch the handwheel once the ball
coupling has been pre-tensioned. When
engaged, the handwheel will spring back to
its original position and could cause injury
→
.
268 Transporting items
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