Mercedes-Benz V 200 d, Operating Instructions Manual

Page: 246 / 404

The power supply which is activated when the
key is in position
2 in the ignition is supplied via
trailer socket pin ten.
The trailer's permanent power supply is
switched off when the vehicle's on-board volt-
age is low and at the latest after six hours.
You can find more information about installing
the trailer electrics at a qualified specialist work-
shop.
Bulb failure indicator for LED lights
If the trailer is equipped with LED lights, the dis-
play may show a malfunction message for the
trailer lights.
The trailer lighting is identified as being faulty
even though it is in working order. The reason for
the malfunction message may be that the cur-
rent has fallen below the minimum of 50 mA.
To ensure reliable operation of the bulb failure
indicator, each LED chain in the trailer lighting
must be guaranteed a minimum current of
50 mA.
Trailers with a 7-pin connector
General notes
If your trailer is equipped with a 7-pin connector,
you need to use an adapter plug or an adapter
cable to make the connection. An adapter plug
or adapter cable for the 13-pin vehicle socket
can be obtained at a qualified specialist work-
shop.
Fitting the adapter
!
Make sure that there is sufficient cable play
so that the cable cannot become detached
when cornering.
X Open the vehicle socket cover.
X Insert adapter plug
;
by lug
:
into groove
=
in the vehicle socket. Turn adapter plug
;
clockwise as far as it will go.
X
Close the cover so that it engages.
X
If you are using an adapter cable, use cable
ties to secure the cable to the trailer.
244
Towing a trailer
Driving and parking