Charging the battery
Note Do not connect the charger to the socket
Do not connect the battery charger to the
socket installed in the vehicle at the factory as this could damage the battery. ◀
Only charge the battery in the vehicle when the
engine is switched off. Connections, refer to
page 244.
General information
Ensure that the battery is sufficiently charged to
achieve the full battery life.
It may be necessary to charge the battery in
the following cases:▷When the vehicle is frequently used to
travel short distances.▷When the vehicle has not been driven for
more than one month.
Power failure
After a temporary power failure, some equip‐
ment will be restricted in its use and will need
to be reinitialized. In addition, certain individual
settings will be lost and must be updated:
▷Time and date: the values must be up‐
dated, refer to page 68.▷Radio: the stations need to be stored again,
refer to page 149.▷Onboard monitor: full functionality will be
restored after some time.▷Glass sunroof, electrical: it may only be pos‐
sible to tilt the roof. The system needs to be
initialized. Contact the service center.
Indicator/warning lamps
Lights up red: the vehicle battery is no
longer being charged. Alternator mal‐
function.
Switch off all unnecessary electrical consumers.
Have the battery checked immediately.
Lights up yellow: the battery charge
level is very low, the battery is old, or it
is not securely connected.
Charge the battery by taking a long drive or us‐
ing an external charger. If the indicators appear
again, have the battery checked as soon as
possible.
Disposing of old batteries Have used batteries disposed of by the
service center after they are replaced or
take them to a recycling center.
Maintain the battery in an upright position for
transport and storage. Secure the battery so
that it does not tip over during transport.
Fuses Replacing fuses
Never attempt to repair a blown fuse and
do not replace a defective fuse with a substi‐ tute of another color or amperage rating; this
could lead to a circuit overload, ultimately re‐
sulting in a fire in the vehicle. ◀
Fuses should be replaced by the service center.
Information on the fuses can be found on the
inside of the covers.
In the engine compartmentSeite 241Replacing componentsMobility241
Online Edition for Part no. 01 40 2 911 452 - VI/13
