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Controls in detail
Audio system
Button and soft key operation
In these instructions, the alphanumeric
keypad (right side of radio panel) and the
function buttons (left side of radio panel)
are referred to as "buttons". The four keys
below the display panel are referred to as
"soft keys".
!
Do not press directly in the display face.
Otherwise, the display will be damaged.
190
Operation
Switching the unit on/off
Switching on
Turn the SmartKey in the starter switch
to position 1 or 2.
If the audio system was on as you
removed the SmartKey from the starter
switch, the audio system will
automatically come back on as you
turn the SmartKey to position 1 or 2.
or
Press M button.
i
If the radio is switched on without the Smart-
Key in the starter switch, it will automatically
switch off again after approx. 30 minutes.
If your vehicle is equipped with a telephone, the
display may prompt you to enter your PIN (GSM
network) or code (TDMA or CDMA network).
Switching off
Remove SmartKey from starter switch.
or
Press M button.
i
Should excessively high temperatures occur
while the audio system is being operated, the
display will dim. If temperatures continue to rise,
HIGH TEMP will appear in the display, after which
the audio system will be switched off for a
cooling-down period.
Adjusting the volume
Turn rotary control of N button.
The volume will increase or decrease
depending on the direction turned.
i
If your vehicle equipment includes a Mer-
cedes-Benz specified mobile telephone*, you
can adjust its volume separately from the volume
of the audio system while the telephone is being
used.
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