X
Select the desired menu bar with the
r
or
s
button.
X
Change the value with the
u
or
t
button.
i
If you press and hold
u
or
t
, the
hours/minutes scroll quickly.
X
To stop the alarm: press the
9
button.
i
The alarm switches off automatically after
two minutes.
Audio menu window
Audio source, title/station/frequency,
MP3 browser
The
Audio
Audio
menu window is available on vehi-
cles with Mercedes-Benz audio equipment.
X
Switch on the CD radio or the radio/naviga-
tion system .
X
Use the
u
or
t
button to scroll to
á
audio and communications.
X
To display the audio source and the
track/station: use the
r
or
s
but-
ton to scroll to the
Audio
Audio
menu window.
X
To change the audio source or title/
station/frequency: press the
9
button.
Depending on the active audio source, the
input window displays:
R
the name of the audio source
R
the station or frequency when in radio
mode
R
the title when in CD, USB or Bluetooth
®
mode
R
the AUX source when in audio AUX mode
R
the waveband when in radio mode
R
the MP3 browser when in CD or USB
mode
X
Select the desired menu bar with the
r
or
s
buttons.
X
Change the audio source, track or station
with the
u
or
t
buttons.
For MP3 files on audio CDs or on USB storage
devices, you can navigate in the files and play
MP3 files.
Operating the MP3 browser
X
Open the
Audio
Audio
menu window.
X
Press the
9
button.
X
Press the
r
or
s
button to select the
MP3 browser menu bar.
X
To open the MP3 browser: press the
u
or
t
button.
X
To switch between MP3 files/folders:
press the
r
or
s
button.
X
To select an MP3 file or to open a folder:
press the
u
button.
X
To close the current folder: briefly press
the
t
button.
X
To close the MP3 browser: press and hold
the
t
button.
Adjusting the volume
Buttons on the multifunction steering wheel
In audio mode, you can adjust the volume at
any time.
X
To increase or decrease the volume:
press
W
or
X
.
Operation and maintenance menu
Axles menu window
Displaying the axle loads
The axle load indicator is not calibrated, nor is
it a system capable of calibration. The meas-
ured data only provides an approximate guide.
The values are not suitable for official use. In
order to avoid inaccuracies in the measure-
ment, make sure that the vehicle is uniformly
laden.
When the chassis is at driving level, the axle
load measuring system determines the axle
load from the pressure in the air spring bel-
lows.
X
Park the vehicle on a level surface.
X
Apply the parking brake.
On-board computer
77
On-bo
ard
computer
and
dis
plays
Z
