Function / device
Sun screen
Radio or navigation system
Time settings
CAUTION
Disconnect the vehicle battery only with the ignition turned off - there is a
■
risk of damaging the electrical system of the vehicle.
Under no circumstances must the battery cables be connected incorrectly –
■
risk of a cable fire.
Note
After disconnecting and re-connecting the vehicle battery, we recommend
■
having the vehicle checked by a specialist to ensure that the full functionality
of all electrical systems is guaranteed.
The data of the multi-function display will be reset.
■
Automatic load deactivation
Read and observe
and
The vehicle voltage control unit automatically prevents the battery from dis-
charging when the battery is subjected to heavy loads. This manifests itself by
the following.
›
The idling speed is raised to allow the generator to deliver more electricity to
the electrical system.
›
Where appropriate large convenience consumers, e.g. seat heaters, rear win-
dow heaters, have their power limited or in case of emergency shut off com-
pletely.
CAUTION
Despite such intervention by the vehicle electric system management, the
■
vehicle battery may be drained. For example, when the ignition is switched on
a long time with the engine turned off or the side or parking lights are turned
on during longer parking.
Consumers which are supplied via a 12 V socket can cause the vehicle battery
■
to discharge when the ignition is switched off.
200
General Maintenance
Operating measure
» page 66
Enter code
»
Operating instruc-
tions for Infotainment Radio or
»
Operating instructions for In-
fotainment Navigation
» page 31
on page 197 first.
Note
Driving comfort is not disrupted by any shutting off of consumers. Often the
driver is not aware of it having taken place.