Mercedes-Benz E-Class 2009 Owner's Manual page 279

Jump-starting
276
You can obtain information about battery
chargers which allow the battery to be
charged while still installed from a qualified
specialist workshop, e.g. a Mercedes-Benz
Service Centre.
G
Risk of injury
There is a risk of acid burns during the charg-
ing process due to the gases which escape
from the battery. Do not lean over the battery
during the charging process.
! Only charge the installed battery with a
battery charger which has been tested and
approved by Mercedes-Benz. These battery
chargers allow the battery to be charged
while still installed.
! Only use battery chargers with a maxi-
mum charging voltage of 14.8 V.
! Only charge the battery using the jump-
start connection point.
Open the bonnet.
X
Connect the battery charger by its positive
X
terminal and earth point in the same order
as when connecting the donor battery in
the jump-starting procedure
( page 276).
Y
Fitting the battery
Install the battery. To do this, follow the
X
steps described in "Removing the battery"
( page 275) in reverse order.
Y
Reconnect the battery (
X
Reconnecting the battery
! Always connect the battery in the order
described below. Never swap the terminal
clamps. You may otherwise damage the
vehicle electronics.
page 276).
Y
Switch off all electrical consumers (e.g.
X
radio, blower, etc.).
Connect the positive terminal clamp and
X
secure the cover.
Connect the negative terminal clamp.
X
Connect the breather hose.
X
Put the filter box back in place, then clip in
X
and close the retaining clamps.
Close the bonnet.
X
i
If the battery power supply has been inter-
rupted (e.g. if it has been reconnected), you
must carry out the following tasks:
set the time
R
reset the function for folding the exterior
R
mirrors in/out automatically* by folding
the mirrors out once (
Jump-starting
If your vehicle's battery is discharged, the
engine can be jump-started from another
vehicle or from an external battery using jump
leads.
Observe the following points:
you may only jump-start when the engine
R
and catalytic converter are cold.
do not start the engine if the battery is fro-
R
zen. Let the battery thaw first.
jump-starting may only be performed from
R
batteries with a nominal voltage of 12 V.
only use jump leads which have a sufficient
R
cross-section and insulated terminal
clamps.
i
Jump leads and further information about
jump-starting can be obtained from any
Mercedes-Benz Service Centre.
! Avoid repeated and lengthy starting
attempts.
Do not use a rapid-charging device to start
the engine.
page 74)
Y
* optional