Terminal connection diagram
#
Remove the cover from positive terminal
3
of the donor battery.
#
Connect the positive terminal clamp of the
jumper cable to positive terminal
3
of the
donor battery, and then to positive terminal
5
of the jump-start connection point.
#
Connect the negative terminal clamp of the
jumper cable to negative terminal
2
of the
donor battery, and then to ground contact
4
of your own vehicle.
#
Start the engine of the donor vehicle and run
it at idling speed.
#
Insert the key into the ignition lock, start the
engine and let it run for several minutes.
#
Before disconnecting the jumper cables,
switch on an electrical consumer in your own
vehicle, e.g. the rear window heater or the
lighting.
#
Disconnect the negative terminal clamp of
the jumper cable from ground contact
4
and
then from negative terminal
2
of the donor
battery.
#
Disconnect the positive terminal clamp of the
jumper cable from positive terminal
5
on
the jump-start connection point, and then
from positive terminal
3
of the donor bat‐
tery.
Contact protection cover
1
is automatically
returned forwards to its original position by
the spring force and the jump-start connec‐
tion point is closed.
#
Position the cover on positive terminal
3
of
the donor battery.
#
Have the battery checked at a qualified spe‐
cialist workshop.
Charging the 12 V battery
*
NOTE Damage to the electronics caused
by non-approved charging devices
Charging an installed battery with a battery
charger which has not been approved by
Mercedes-Benz can damage the on-board
electronics.
#
Only use a battery charger which has
been approved by Mercedes-Benz and
which permits charging the battery
when it is installed in the vehicle.
#
Only charge the battery using the jump-
start connection point.
A battery charger specially adapted for
Mercedes-Benz vehicles and tested and approved
for Mercedes-Benz is available as an accessory.
Further information is available from any
Mercedes-Benz Commercial Van Center. Read the
operating instructions for your charger before
charging the battery.
Recharge the battery more frequently if you use
the vehicle mainly for short trips and/or drive at
low outside temperatures.
#
Connect the battery charger to the positive
terminal and ground contact in the same
order as when connecting the donor battery
in the jump-starting procedure.
%
If a battery is not installed and not in service,
you should charge it every three months. This
helps to counteract self-discharging and pre‐
vent damage to the battery.
12 V battery care
*
NOTE Battery discharging due to leakage
current
Dirty battery clamps and battery surfaces
cause leakage current. This can lead to the
battery discharging.
#
Keep the battery terminals and battery
surfaces clean and dry.
*
NOTE Damage to the battery housing
due to improper cleaning
If you use cleaning agents containing fuel,
these can damage the battery housing.
#
Do not use cleaning agents containing
fuel.
Breakdown assistance 193
