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Practical hints
Battery
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.
̈ Remove the SmartKey from the starter
switch.
̈ Connect the positive lead and fasten its
cover.
̈ Connect the negative lead.
̈ Install the luggage box (୴ page 397).
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
battery in its installed position. Contact an
authorized Mercedes-Benz Center for infor-
mation and availability. Charge battery in
accordance with the separate instructions
for the accessory battery charger*.
!
The battery, its filler caps and the battery
ventilation tube must always be securely in-
stalled when the vehicle is in operation.
!
Never invert the terminal connections!
i
The following procedures must be carried
out following any interruption of battery power
(e.g. due to reconnection):
ț Set the clock (୴ page 157) (see COMAND
operator’s manual).
ț Synchronize the side windows
(
୴ page 207).
ț Synchronize the tilt/sliding sunroof
(
୴ page 212).