BMW M3 SEDAN, Owner'S Manual, Page: 354 / 392

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 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.
Maximum charge voltage: 14.4 volts.
NOTICE
Battery chargers for the vehicle battery can
work with high voltages and currents, which
means that the 12 volt electrical system can be
overloaded or damaged. There is a risk of dam‐
age to property. Only connect battery chargers
for the vehicle battery to the starting aid termi‐
nals in the engine compartment.
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
359 .
Power failure
After a power loss, 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.
Seite 354
MOBILITY
Replacing components
354
Online Edition for Part no. 01405A1E4B0 - X/20