Mercedes-Benz 2003 C 240 4MATIC Operator's Manual page 170

Controls in detail
Audio system
Balance
In radio, cassette and CD mode, press
the key repeatedly until
AUD
appears on the display.
Press the or key to shift the sound
L R
accordingly.
or
Press both the and keys simulta-
L R
neously to reset the balance to its cen-
ter level.
170
Returning audio functions to factory set-
tings
BALANCE
In radio, cassette and CD mode, press
and hold the
seconds.
RESET
play.
All settings for bass, treble and balance
are returned to center and the volume
is set to a predefined level.
key longer than two
AUD
will appear on the dis-
Audio system sound selection (EXT)*
In radio, cassette and CD mode, press
the key.
AUD
The sound settings menu appears on
the display.
Press the key.
EXT
Press one of the function keys.
You can select from among the follow-
ing settings:
: The tone level is set to the
DRV
"Driver" position, sound is directed
toward the passengers.