Page 14 of 175

14Introduction
or close call list ...................... 67or activate/deactivate mute ...14
or deactivate speech
recognition ............................ 55Usage
Control elements
The Infotainment system is operated
via function buttons, a multifunction
knob and menus that are shown on
the display.
Inputs are made optionally via: ■ the central control unit on the instrument panel 3 8
■ controls on the steering wheel 3 8
■ the speech recognition system 3 55.
Notice
Only the most direct ways for menu operation are described in the
subsequent chapters. In some
cases, there may be other options.
Switching the Infotainment
system on or off Press the X knob briefly. After
switching on, the last selected
Infotainment source becomes active.Automatic switch-off
If the Infotainment system is switched
on using the X knob while the ignition
is switched off, it switches off again
automatically after 10 minutes.
Setting the volume Turn the X knob. The current setting
is shown in a pop-up at the bottom of
the screen.
When the Infotainment system is
switched on, the last selected volume
is set, provided that the volume is
lower than the maximum start-up
volume.
The following volume settigs can be
set separately:
■ the maximum start-up volume 3 20
■ the volume of the traffic announcements 3 20
■ the volume of the navigation messages 3 38.
Page 90 of 175

90IntroductionUsageControl elements
The Infotainment system is operated
via function buttons, multifunctional
knobs and menus that are shown on
the display.
Inputs are made optionally via: ■ the central control unit in the instrument panel 3 84
■ controls on the steering wheel 3 84
■ the speech recognition system 3 114
Switching the Infotainment
system on or off Press the X knob briefly. After
switching on, the last selected
Infotainment source is active.
Automatic switch-off
If the Infotainment system has been switched on using the X knob when
the ignition was switched off, it will switch off again automatically after
30 minutes.Setting the volume
Turn the X knob. The current setting
is shown on the display.
When the Infotainment system is
switched on, the last selected volume
is set, provided that volume is lower
than the maximum start-up volume.
The following can be set separately: ■ the maximum start-up volume 3 96
■ the volume of the traffic announcements 3 96
Speed compensated volume
When speed compensated volume is
activated 3 96 the volume is
adapted automatically to make up for the road and wind noise as you drive.
Mute
Press the 7 / i button (if Phone
portal is available: press for a few
seconds) to mute the audio sources.
To cancel mute again: turn the X
knob or press the 7 / i button again
(if Phone portal is available: press for a few seconds).Volume limitation at high
temperatures
At very high temperatures inside the
vehicle the Infotainment system limits
the maximum adjustable volume. If
necessary the volume is decreased
automatically.
Modes of operation
Radio
Press the RADIO button to open the
radio main menu or to change
between the different wavebands.
Press the multifunction knob to open
a submenu with options for station
selection.
Detailed description of the radio
functions 3 98.
Audio players
Press the CD / AUX button to open
the CD, USB, iPod or AUX menus or
to switch between these menus.
Press the multifunction knob to open
a submenu with options for track
selection.
Page 139 of 175

Introduction139UsageControl elements
The Infotainment system is operated
via function buttons, a multifunction
knob and menus that are shown on
the display.
Inputs are made optionally via: ■ the control panel on the Infotainment system 3 136
■ audio controls on the steering wheel 3 136.
Switching the Infotainment
system on or off Press the X knob briefly. After
switching on, the last selected
Infotainment source becomes active.
Press the X knob again to turn the
system off.
Automatic switch-off
If the Infotainment system is switched on using the X knob while the ignition
is turned off, it will switch off again
automatically 10 minutes after the last
user input.Setting the volume
Turn the m knob. The current setting
is shown on the display.
When the Infotainment system is
switched on, the last selected volume is set, provided this setting is lower
than the maximum start-up volume
(see below).
The following inputs can be made
separately:
■ the maximum start-up volume 3 143
■ the volume of traffic announcements 3 143.
Speed compensated volume
When speed compensated volume is
activated 3 143, the volume is
adapted automatically to make up for
the road and wind noises as you
drive.
Mute function
Press the 7 / i button or the i button
(if Phone portal available: press for a few seconds) to mute the audio
sources.To cancel the mute function: turn the
m knob or press the 7 / i button (if
Phone portal available: press for a
few seconds) or press the i button
again.
Volume limitation at high
temperatures
At very high temperatures inside the
vehicle the Infotainment system limits
the maximum adjustable volume. If
necessary, the volume is decreased automatically.
Modes of operation Radio
Press the RADIO button to open the
radio main menu or to change
between the different wavebands.
Press the multifunction knob to open
the waveband menus with options for the station selection.
For a detailed description of the radio
functions 3 145.