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170 Driving and parking
The amount of energy dispensed for the charging
process, shown by the charging station, may be
higher than the amount of energy actually absor-
bed by the high-voltage battery. This is the result
of different levels of charging losses and is descri-
bed as recharge efficiency. Charging losses occur,
for example, due to heat that builds up when the
vehicle is charging or from auxiliary consumers
that are switched on. Further information on
recharge efficiency can be obtained at a qualified
specialist workshop.
Notes on charging the high-voltage battery at a
rapid charging station (mode 4)
& DANGER Risk of fatal injury due to dam-
aged components
Connecting the vehicle to a charging station
using damaged component parts could cause
a fire or an electric shock, for example.
Perform a visual check of the charging
#
station for obvious defects, for example
damage to the housing or charging cable
connection.
Never use damaged charging cables.
#
Do not use an extension for the charging
#
cable.
Do not use adapters.
#
Always observe the safety instructions
#
on the charging station.
& DANGER Risk of fatal injuries when carry-
ing out maintenance work during the
charging process
During the charging process, the high-voltage
on-board electrical system is under high volt-
age.
Do not perform any maintenance work
#
during the charging process.
Most charging stations must be activated before
the charging process, e.g. using an RFID card or
via Plug-and-Charge. Observe the on-site opera-
tor's instructions for the charging station and the
notes on Mercedes me Charge (see the vehicle's
Digital Operator's Manual).
The amount of energy dispensed for the charging
process, shown by the charging station, may be
higher than the amount of energy actually absor-
bed by the high-voltage battery. This is the result
of different levels of charging losses and is refer-
red to as charging efficiency. Charging losses
occur, for example, due to heat that builds up
when the vehicle is charging or from auxiliary con-
sumers that are switched on. Further information
on charging efficiency can be obtained at a quali-
fied specialist workshop.
Setting the maximum permissible charging cur-
rent for charging at a mains socket
* NOTE Overloading the mains socket due
to excessive charging current
If the charging current is too high, the fuse
could be tripped or the external mains supply
could overheat.
Make sure that the external mains supply
#
has been designed to handle the set
charging current.
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