Mercedes-Benz C-CLASS WAGON C 240 Operator's Manual page 206

Controls in detail
Audio system
Adjusting treble
Press O button repeatedly until
TREBLE appears in the display.
Press or soft key to increase or
+ –
decrease tone level accordingly.
or
Press RES soft key briefly to reset treble
tones to their center level.
The radio switches back to the
standard radio menu eight seconds
after the last soft key is pressed.
204
Sound system*
You can either program the sound settings
manually ( page 203) or choose settings
via preset sound characteristics.
You can select from among the following
settings:
: conventional stereo sound.
STANDARD
SURROUND : the sound is set for better
three-dimensional acoustic character-
istics.
: the sound is optimized for the
SPEECH
spoken word.
Press O button repeatedly until
STANDARD , SURROUND , or SPEECH
in the display.
Press X or Y soft key repeatedly
until the desired sound setting has
been reached.
The sound is set accordingly.
or
Press soft key briefly.
RES
The sound setting is reset depending
on the sound source activated.
Radio mode:
CD/AUX mode:
Telephone: SPEECH
The radio switches back to the
standard radio menu eight seconds
appears
after the last soft key is pressed.
STANDARD
SURROUND