R
never touch the battery first. To discharge
a possible electrostatic charge, step out of
the vehicle first and touch the bodywork.
R
do not wipe the battery using a cloth. The
battery may explode as a result of electro-
static charge or due to flying sparks.
!
Before loosening the terminal clamps of
the battery, switch off the engine and
remove the key or, on vehicles with KEY-
LESS GO*, make sure that the ignition is
not switched on. In the instrument cluster,
all of the indicator lamps must be out. Oth-
erwise, you may destroy electronic compo-
nents, such as the alternator.
i
Mercedes-Benz recommends that you
have work involving the battery, e.g.
removal, charging and replacement, car-
ried out at a qualified specialist workshop,
e.g. a Mercedes-Benz Service Centre.
Installation location of the battery
Your vehicle is equipped with a battery in the
engine compartment. It is located on the front
bulkhead under the filter box on the right-
hand side of the vehicle when viewed in the
direction of travel.
Example
:
Negative terminal
;
Positive terminal
i
Remove the key if you park the vehicle
and do not require any electrical consum-
ers. The vehicle will then use very little
energy, thus conserving the battery.
i
If the battery is discharged, you must use
the emergency key element to unlock the
vehicle.
Charging the battery
G
Risk of injury
Only charge the installed battery using a
Mercedes-Benz approved battery charger.
Otherwise, the vehicle's electronic system
may be damaged. Only charge the battery in
a well-ventilated area. As the battery is being
charged, gases can escape and generate
minor explosions. This could injure you and
other persons or cause damage to the paint-
work or acid corrosion on the vehicle.
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.
X
Use the electric parking brake to secure the
vehicle and use the DIRECT SELECT lever
to set the transmission to P.
X
Switch off all electrical consumers.
X
Turn the key to position 0 in the ignition
lock and remove it.
X
Open the bonnet.
X
Check that the breather hose is fitted and
that there is a cell cap on the opposite side
of the battery.
X
Remove the cover from the positive termi-
nal.
X
Connect the positive clamp of the battery
charger to the positive terminal of the bat-
tery.
Battery
411
Prac
tic
al
advic
e
* optional
221_AKB; 2; 3, en-GB
bjanott,
Version: 2.11.7.7
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Dateiname: 6515231002_buchblock.pdf; erzeugt am 03. Mar 2009 15:18:48; WK