Mercedes-Benz GLB 2023, Operator'S Manual

Page: 309 / 462

Observe this Operator's Manual.
If you do not intend to use the vehicle over an
extended period of time:
R
Activate standby mode.
R
Connect the battery to a charger approved by
Mercedes-Benz.
R
Consult a qualified specialist workshop to dis-
connect the battery.
Notes on starting assistance and charging the 12
V battery
When charging the battery and during starting
assistance, always use the jump-start connection
point in the engine compartment.
* NOTE Damage to the battery due to over-
voltage
When charging using a battery charger without
a maximum charging voltage, the battery or
the on-board electronics may be damaged.
#
Only use battery chargers with a maxi-
mum charging voltage of 14.8 V.
&
WARNING Risk of explosion due to the
ignition of hydrogen gas
If there is a short circuit or sparks are created,
there is a danger of hydrogen gas igniting
when you charge the battery.
#
Make sure that the POSITIVE terminal of
a connected battery does not come into
contact with vehicle parts.
#
Never place metal objects or tools on a
battery.
#
When connecting and disconnecting the
battery, always observe the sequence of
battery terminals described.
#
During starting assistance, always take
care to connect only battery terminals of
identical polarity.
#
During starting assistance, observe the
sequence described for connecting and
disconnecting the jumper cables.
#
Do not connect or disconnect the bat-
tery terminals with the engine running.
&
WARNING Risk of explosion due to a mix-
ture of explosive gases
A mixture of explosive gases can escape from
the battery during charging and jump starting.
#
Fire, open flames, smoking and creating
sparks must be avoided.
#
Make sure that there is sufficient ventila-
tion.
#
Do not stand over the battery.
&
WARNING Risk of explosion from a frozen
battery
A discharged battery may freeze at tempera-
tures slightly above or below freezing point.
During starting assistance or battery charging,
battery gas can be released.
#
Always allow a battery to thaw before
charging it or performing starting assis-
tance.
Breakdown assistance 307