Mercedes-Benz 2013 GLS Class - Manual (Page 241)

Trailer with 7-pin connector
General notes
Trailers with 7-pin connector: you can
make a connection to the 13-pin connector
on the ball coupling using an adapter plug or,
if necessary, an adapter cable. Both can be
obtained in a qualified specialist workshop.
Fitting the adapter
!
Make sure that there is sufficient cable
play so that the cable cannot become
detached when cornering.
X Open the socket cover.
X Insert connector with lug : into
groove ; of the socket. Turn the connec-
tor clockwise to the stop.
X Let the cover engage.
X If you are using an adapter cable, secure
the cable to the trailer with cable ties.
Towing a trailer
239
Driving and parking
Z