Lamps - Mercedes-Benz Sprinter Operating Instructions Manual

Decoupling a trailer
G
WARNING
If you uncouple a trailer with an engaged over-
run brake, you could trap your hand between
the vehicle and the trailer drawbar. This poses
a risk of injury.
Do not uncouple a trailer with an engaged
overrun brake.
! Do not disconnect a trailer with an engaged
overrun brake. Otherwise, your vehicle could
be damaged by the rebounding of the overrun
brake.
X
On vehicles with an automatic transmission,
make sure that the selector lever is in position
P.
X
Apply the parking brake.
X
Close all the doors.
X
Apply the trailer parking brake.
X
In addition, secure the trailer against rolling
away with a wheel chock or similar object.
X
Remove the trailer cable and decouple the
trailer.
Trailer power supply
! You can connect accessories to the perma-
nent power supply up to a maximum of 240 W.
You cannot charge a trailer battery using the
power supply.
The trailer socket of your vehicle is equipped at
the factory with a permanent power supply.
The permanent power supply is supplied via
trailer socket pin 9.
The trailer's permanent power supply is
switched off when the vehicle's on-board volt-
age is low.
You can find more information about installing
the trailer electrics at a qualified specialist work-
shop.
Bulb failure indicator for LED lamps
If the trailer is equipped with LED lamps, the
b indicator lamp in the instrument cluster
may light up or the display may show a corre-
sponding malfunction message.
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
X
Open the vehicle socket cover.
X
Insert the adapter plug by lug : into groove
= in the vehicle socket. Turn bayonet con-
nection ; 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.
Trailer towing
Z
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