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8IntroductionGeneral information on operating the unit
Introduction
Depending on the vehicle you can also change the track or station and ad-just the volume using the multifunction steering wheel ⇒ Booklet Instruc-tion manual, chapter Overview of the vehicle.
Additional information and warnings:
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Safety notes ⇒ page 4
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Unit overview ⇒ page 6
Additional display information
Depending on the vehicle specification, changes to air conditioning set-tings or information on factory-fitted driver assistance systems may be dis-played temporarily on the screen. These displays disappear automaticallywhen they are no longer required.
Note
●Only a small amount of pressure is needed to operate the unit.●
Due to country-specific legislation, certain functions cannot be selectedwhen the vehicle is travelling above a certain speed.
●
Using a mobile phone in the vehicle may cause noise from the vehiclespeakers.
●
In some vehicles equipped with a parking distance warning system, thevolume of the current audio source is automatically lowered when reversegear is engaged.
Rotary/push knobs, unit and function buttons
Overview
●
Rotary/push knobs.
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Labelled unit buttons (hard keys).
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Function buttons (soft keys).
Rotary/push knobs
The left-hand rotary/push knob ⇒ Fig. 1
1
is referred to as the volume con-trol or the on/off switch.
The right-hand rotary/push knob ⇒ Fig. 1
8
is referred to as the settingknob.
Unit buttons and function buttons
The system labelled buttons are called “unit buttons”, e.g. SOUND button⇒ Fig. 1.
There are six unlabelled unit buttons below the screen ⇒ Fig. 1
7
. Theseare known as “function buttons” because their function depends on the ac-tive function mode.
The current function of a function button is displayed just above the buttonin the bottom line of the screen (e.g. ⇒ Fig. 6).
Switching on and off
●
To switch the unit on or off manually, briefly press the rotary/push knob ⇒ Fig. 1 rotary/push knob.
When the unit is switched on the system starts up. The last audio sourceused is played at the last selected volume setting, provided this does notexceed the preselected “switch-on volume” (ON-VOL or START-VOL⇒ page 38).
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9IntroductionDepending on the unit and country, the unit is switched off when the engineis turned off or the key is removed. If the unit comes on again without theignition being switched on, it will switch off automatically after 30 minutes(switch-off delay).
Energy management
If, when the ignition is switched off and the unit switched on, the batteryvoltage falls below the minimum onboard power supply voltage, an audiblewarning sounds and LOW BATTERY appears. You should switch the unit off.
If the battery voltage level continues to fall, LOW BATTERY and RADIO OFF arebriefly shown on the display. The unit will switch off automatically.
Adjusting the base volume
effectActionIncrease the vol-ume.On the radio: Turn the volume control ⇒ Fig. 1 1
clockwise.On the multifunction steering wheel: Turn the volumecontrol up or press the corresponding button (depend-ing on equipment fitted) ⇒ Booklet Instruction Manual,chapter Overview of vehicle
Decreasing thevolumeOn the radio: Turn the volume control ⇒ Fig. 1 1 an-ticlockwise.On the multifunction steering wheel: Turn the volumecontrol down or press the corresponding button (de-pending on equipment fitted) ⇒ Booklet InstructionManual, chapter Overview of vehicle
Changes to the volume are indicated by a bar on the screen.
At “0” the unit is muted (display: ) and any media source currently beingplayed will be stopped.
It is possible to preset certain volume settings and adjustments⇒ page 38.
Note
If the basic playback volume of an audio source has been increased sub-stantially, lower the volume before changing to another audio source.
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29Audio modePlayback of external media connected by Bluetooth®
Bluetooth Audio mode is only available if the vehicle is equipped with a fac-tory-fitted mobile phone preparation that supports this function. Please re-fer to the relevant operating manual supplied with the vehicle for informa-tion on operating the mobile phone preparation ⇒ Booklet Mobile phonepreparation.
The external media player (e.g. a mobile phone) must be compatible withthe Bluetooth® A2DP or AVRCP profiles.
In Bluetooth audio mode, audio files from a media player that is connectedvia Bluetooth® can be played over the vehicle speakers.
Bluetooth Audio mode is indicated by BT-AUDIO or BLUETOOTH-AUDIO on thedisplay.
Starting Bluetooth® audio transfer
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You will have to pair and connect the external media player with theBluetooth interface of the mobile phone preparation as described in the in-structions ⇒ Booklet Mobile phone preparation.
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Lower the basic volume of the radio ⇒ page 8.
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Start playback in the external media player.
Starting playback over the vehicle loudspeakers
After starting, the procedure to transfer audio files depends on whether theBLUETOOTH-AUDIO option is ON or OFF in the SETUP menu ⇒ page 38.
SETUP: BLUETOOTH-AUDIO OFF (default):
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After starting the Bluetooth audio transfer, a query is displayed to playBluetooth audio.
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Confirm the query.
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Bluetooth audio will start to play and the SETUP menu now displaysBLUETOOTH-AUDIO ON.
SETUP: BLUETOOTH-AUDIO ON:
●After starting the Bluetooth audio transfer, you must change manually toBLUETOOTH-AUDIO ⇒ page 24.
Note
●Do not connect an external media player at the same time to play musicvia Bluetooth and via the MEDIA-IN multimedia interface as this could causeplayback limitations.
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When the external media has finished playing, the radio system remainsin the BLUETOOTH-AUDIO menu.
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Always switch off the warning and service tones on a connected Blue-tooth audio source, e.g. key tones on a mobile telephone, to prevent inter-ference noise and malfunctions.