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398 Breakdown assistance
Risk of explosion.
Fire, naked flames and smoking are
prohibited when handling the battery.
Avoid creating sparks.
Electrolyte or battery acid is corro‐
sive. Avoid contact with the skin, eyes
or clothing. Wear suitable protective
clothing, in particular gloves, an
apron and a face mask. Immediately
rinse electrolyte or acid splashes off
with clean water. Consult a doctor if
necessary.
Wear safety glasses.
Keep children away.
Observe this Owner's Manual.
Observe the following if you do not intend to use
the vehicle over an extended period of time:
Activate standby mode.
R
Alternatively: connect the battery to a bat‐
R
tery charger approved by Mercedes-Benz or
consult a qualified specialist workshop to
disconnect the battery.
Notes on starting assistance and charging
the 12 V battery
Vehicles with a lithium-ion battery
When charging the battery and during starting
assistance, always use the jump-start connec‐
tion point in the engine compartment.
Internal use only
* NOTE Damage to the battery from over‐
voltage
When charging using a battery charger with‐
out a restriction of the maximum charging
voltage, the battery or the on-board electron‐
ics can be damaged.
Only use battery chargers with a maxi‐
#
mum charging voltage of 14.8 V.
All other vehicles
When charging the battery and during starting
assistance, always use the jump-start connec‐
tion point in the engine compartment.
* NOTE Damage to the battery from over‐
voltage
When charging using a battery charger with‐
out a restriction of the maximum charging
voltage, the battery or the on-board electron‐
ics can be damaged.
Only use battery chargers with a maxi‐
#
mum charging voltage of 14.8 V.
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