11
Introduction
Depending on the unit and country in question, the unit is switched off
when the engine is turned off or the key is removed. If the unit is switched
on again, it will switch off automatically after approximately 30 minutes (de-
layed switch-off).
Energy management
If, when the ignition is switched off and the unit switched on, the battery
voltage falls below the minimum onboard power supply voltage, a signal
sounds and LOW BATTERY appears. You should switch the unit off.
If the battery voltage level continues to fall, LOW BATTERY and RADIO OFF are
briefly shown on the display. The unit will switch off automatically.
Adjusting the base volume
FunctionHow to access itIncrease the vol-
ume.Turn the volume control ⇒ fig. 1 clockwise or press
the corresponding button on the multifunction steering
wheel ⇒ Booklet Instruction manual, chapter Overview
of the vehicle.
Decreasing the
volumeTurn the volume control anticlockwise or press the
corresponding button on the multifunction steering
wheel.
Changes to the volume are indicated by a bar on the screen.
At “0” the unit is muted (display: ) and any media source currently being
played will be stopped.
It is possible to preset certain volume settings and adjustments
⇒ page 40.
Note
If the basic playback volume of an audio source has been increased sub-
stantially, lower the volume before changing to another audio source.
