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Practical hints
Batteries
Charging and reinstalling the battery
̈ Charge battery in accordance with the
instructions of the battery charger
manufacturer.
̈ Reinstall the charged battery. Follow
the previously described steps in re-
verse order.
Reconnecting the battery
̈ Turn off all electrical consumers.
̈ Connect the positive lead and fasten its
cover.
̈ Connect the negative lead.
Batteries contain materials that can harm
the environment if disposed of improperly.
Large 12 volt storage batteries contain
lead. Recycling of batteries is the preferred
method of disposal. Many states require
sellers of batteries to accept old batteries
for recycling.
Warning! G
Never charge a battery while still installed in
the vehicle unless the accessory battery
charge unit* approved by Mercedes-Benz is
being used. Gases may escape during charg-
ing and cause explosions that may result in
paint damage, corrosion or personal injury.
An accessory battery charge unit* specially
adapted for Mercedes-Benz vehicles and
tested and approved by Mercedes-Benz is
available, permitting the charging of the bat-
tery in its installed position. Contact an au-
thorized Mercedes-Benz Center for
information and availability. Charge battery
in accordance with the instructions for the
accessory battery charger*.
!
Never invert the terminal connections!
!
The battery, its filler caps and the vent
tube must always be securely installed
when the vehicle is in operation.
i
The following procedures must be car-
ried out following any interruption of
battery power (e.g. due to reconnec-
tion):
ț Set the clock (୴ page 167)
(see COMAND operator’s manual).
ț Resynchronize the ESP
(
୴ page 367).
ț Resynchronize the side windows
(
୴ page 223).
ț Resynchronize the tilt/sliding sun-
roof* (
୴ page 227).