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23 At a glance
Quick reference COMAND
Switching on
Turn the key in the steering column
lock to position 1 or 2.
or
Press e.
In both cases, the system will activate
the operating mode which was active
when the system was switched off.Switching off
Turn the key in the steering column
lock to position 0 and pull the key out.
or
Press e.
The volume is adjusted jointly for the
telephone*, the navigation system and the
Voice control system.
The volume setting applies to other
operating modes as well: radio, tape, CD,
CD changer*, MP3-CD and DVD.
When you adjust the volume, the system
will automatically store the setting for the
current operating mode. The volume for
the navigation announcements can only be
changed while an announcement is being
made.
iYou have the following options to
control the system:
at the COMAND
at the multifunction steering wheel
(refer to vehicle Operator's Manual)
using the Voice control system*
(refer to separate operating
instructions for further information)
This Operator’s Manual describes the
control at the COMAND.
Unless otherwise indicated, the
descriptions and illustrations refer to
the COMAND.
Switching the COMAND control unit
on and offiIf the key is not in the steering lock in
position 1 or 2, the system will
automatically stop after around 30
minutes. A warning is displayed prior to
the system switching off.
Volume
Quick reference COMAND
Page 33 of 227
24 At a glanceQuick reference COMANDAdjusting the volume
At the COMAND, turn the rotary control
at the e key.
or
Press J or I on the
multifunction steering wheel.
The volume is turned up or down
depending on the direction of rotation
or the key pressed.
The system remembers the volume
setting when it is switched off.
When the system is switched on again,
the volume may be lower than at the
time when the system was switched
OFF.
This will be the case when the volume
was adjusted to a value outside a
certain range when the system was
switched off.Automatic volume control
The automatic volume control feature
adjusts the volume depending on:
vehicle speed (only in vehicles without
sound system*)
or
ambient noise inside the vehicle (only
in vehicles without sound system*)
other parameters (e.g. windows open
or closed)
Page 98 of 227

89 Telephone*
Important notes
iIf you have a Mercedes-Benz specified
integrated mobile telephone (TDMA/
CDMA or GSM) and the telephone is
inserted in the cradle, the telephone
functions can be used as follows:
at the COMAND
at the multifunction steering wheel
with the Voice control system*
This instruction manual describes the
operation at the COMAND. Unless
otherwise indicated, the descriptions
and illustrations refer to the COMAND.
Operation at the mobile phone and
operation with the Voice control
system* are described in separate
operating guides. Refer to the vehicle
Operator's Manual for operation of the
telephone using the multifunction
steering wheel.
iIn certain menus, the COMAND can
display date and time of the calls.
The COMAND can display phone
number and name of the other party
(e.g. if the COMAND detects an
incoming call, but also in other menus).
For the number to be displayed, the
number information must be
transmitted with the incoming call. The
same goes for the name display which
additionally requires that the caller’s
number and name are saved in the
phone book.