X
Remove the protective cap from the ball
coupling recess.
X
Press the protective cap into the ball cou-
pling recess until it engages.
X
Store the ball coupling with the key inser-
ted in the ball coupling recess.
X
Fold the trailer power socket upwards.
G
Risk of accident
Do not carry the ball coupling in the vehicle
interior if it is not secured.
Otherwise, you and others could be injured by
the ball coupling being thrown around if you:
R
brake sharply
R
change direction suddenly
R
are involved in an accident
Trailer power supply
When it leaves the factory, your vehicle's
trailer socket outlet is equipped with a per-
manent power supply and a power supply that
is switched on via the ignition lock.
The permanent power supply is supplied via
trailer socket pin 9.
The power supply that is switched on via the
ignition lock is supplied via trailer socket pin
10.
!
You can connect consumers with a power
rating of up to 240 W to the permanent
power supply and up to 180 W to the power
supply that is switched on via the ignition
lock.
You must not charge a trailer battery using
the power supply.
The trailer's permanent power supply is
switched off in the event of low vehicle supply
voltage and after six hours at the latest.
The trailer's turn signal lamps are only guar-
anteed to function when bulbs are used.
You can obtain further information about
installing the trailer electrics from a qualified
specialist workshop, e.g. a Mercedes-Benz
Service Centre.
X
To switch the connected power supply
on or off: turn the key in the ignition lock
to position 2 or 0, respectively.
Trailer with 7-pin connector
If your trailer has a 7-pin connector, you can
connect it to the 13-pin socket on the ball
coupling using an adapter or, if necessary, an
adapter cable. Both of these can be obtained
at a qualified specialist workshop, e.g. at a
Mercedes-Benz Service Centre.
Fitting the adapter
X
Open the socket cover.
X
Insert connector with lug
:
into
groove
;
on the socket and turn the con-
nector clockwise to the stop.
X
Make the cover engage.
X
If you are using an adapter cable, secure
the cable to the trailer with cable ties.
!
Make sure that there is sufficient cable
play so that the cable cannot become
detached when cornering.
166
Trailer towing*
Op
er
at
ion
* optional
X204_AKB; 1; 5, en-GB
wobuchh,
Version: 2.11.4
2008-10-15T13:20:56+02:00 - Seite 166
Dateiname: 6515_0671_02_buchblock.pdf;
preflight