BMW M4 COUPE Owner's Manual page 359

sages displayed which relate to comfort features
will disappear.
Charging the battery
General information
Make sure that the battery is always sufficiently
charged to guarantee that the battery remains
usable for its full service life.
A discharged battery is indicated by a red
indicator light.
Charge the battery when acceleration is insuffi‐
cient.
The maximum charging voltage is 14.4 volts.
The following circumstances can have a negative
effect on the performance of the battery:
▷ Frequent short-distance drives.
▷ The vehicle is not used for more than a
month.
Safety information
NOTICE
Non-compatible external chargers can damage
the vehicle. There is a risk of an accident and
damage to property. Only loading devices that
are compatible with your vehicle and that are
below the maximum charge voltage should be
used to charge your vehicle. Information on
compatible chargers is available at your dealer's
service center.
NOTICE
Battery chargers that charge the vehicle battery
via sockets or cigarette lighters in the vehicle
may overload or damage the 12 V electrical
system. There is a risk of damage to property,
among other potential damage. Only connect
battery chargers for the vehicle battery to the
Replacing components
Online Edition for Part no. 01405A38097 - VI/21
starting aid terminals in the engine compart‐
ment.
Charging the battery
Charge the battery only when the engine is off
and via the starting aid terminals in the engine
compartment.
Additional information:
Starting aid terminals, refer to page 364.
Power interruption
After a power interruption, some equipment
needs to be newly initialized or individual settings
updated, for example:
▷ With Memory function: store the positions
again.
▷ Time: update.
▷ Date: update.
▷ Glass sunroof: initialize the system.
Disposing of old batteries
Have old batteries disposed of by a deal‐
er's service center or another qualified
service center or repair shop or take
them to a collection point.
Maintain the filled battery in an upright position
for transport and storage. Secure the battery so
that it does not tip over during transport.
Fuses
General information
The fuses are located at different places in the
vehicle.
MOBILITY
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