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Practical hints
Batteries
̄ Batteries
Your vehicle is equipped with two batter-
ies:
ț Main battery (battery for starter and
electrical consumers; located in the
trunk).
ț Auxiliary battery (back-up battery; sta-
bilizes the electrical system if the main
battery is discharged; located in the en-
gine compartment)
The main battery is in the trunk under the
luggage box. Remove the luggage box
(
୴ page 351).
Vehicles with spare wheel
1 Negative terminal
2 Positive terminal
i
E55 AMG:
The main battery is located inside the
trunk area at the top instead of to the
right.
Warning! G
Jump starting must only be done using the
main battery in the trunk.
Warning! G
Failure to follow these instructions can re-
sult in severe injury or death.
Observe all safety instructions and precau-
tions when handling automotive batteries
(
୴ page 287).
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.