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Practical hints
Battery
̄ Battery
Your vehicle is equipped with two batter-
ies:
ț Auxiliary battery (back-up battery; sta-
bilizes the electrical system if the main
battery is discharged; located in engine
compartment).
ț Main battery (starter and electrical
consumers; located in the trunk under
the luggage box).
̈ Remove the luggage box (୴ page 401).
1 Positive terminal cover
2 Negative terminal
Warning! G
Jump starting must only be done using the
main battery in the trunk.
Warning! G
Failure to follow these instructions can
result in severe injury or death.
Observe all safety instructions and precau-
tions when handling automotive batteries
(
୴ page 299).
Never lean over batteries while connecting,
you might get injured.
Battery fluid contains sulfuric acid. Do not
allow this fluid to come in contact with eyes,
skin or clothing. In case it does, immediately
flush affected area with water and seek
medical help if necessary.
A battery will also produce hydrogen gas,
which is flammable and explosive. Keep
flames or sparks away from battery, avoid
improper connection of jumper cables,
smoking etc.
!
Never loosen or detach battery termi-
nal clamps while the engine is running
or the SmartKey is in the starter switch.
Otherwise the alternator and other
electronic components could be se-
verely damaged.
Have the battery checked regularly by
an authorized Mercedes-Benz Center.
Refer to Maintenance Booklet for main-
tenance intervals or contact your
authorized Mercedes-Benz Center for
further information.