BMW F 46 71 001 Instructions De Montage page 17

8. To install the storage box for the
ball head
F 46 71 024
Place the polystyrene mounting (1) for the ball head
(2) in the spare wheel trough and secure it with the
metal holder (3). The ball head (2) must always be
secured with the Velcro fastening when it is in the
trough.
9. Function test
Install the ball head as set out in the enclosed
owner's handbook and ensure that the ball head
moves easily and can be secured properly.
Check the light signals on the trailer socket.
Assemble the car again using the above
instructions in reverse.
10. Circuit diagram for the tow hitch
E46/2/3/4/C
A3 Light switch centre
A6 Trailer module
A46 Fuse distributor
X9 Terminal lug 30 U
X12 Light switch centre A3
X428 Reversing light connector
X498 Ground
X609 Trailer module
X630 Trailer socket – 13-pin
X318 Tail light, right
X319 Tail light, left
X10015 Fuse holder I A46
F 46 00 73 2W
EN/17