Mercedes-Benz 2009 C-Class Operator's Manual page 160

Controls in detail
Audio system
Symbol How to use the audio controller
X
Press briefly.
n
X
Press and hold until the selected action has been carried out.
X
Rotate.
ymz
X
Slide.
qmr
X
Slide.
omp
X
Slide and hold.
158
Function
Confirming the selection of a menu item or list entry.
R
Saving a station.
R
Moving through vertical or horizontal menus or through lists.
R
Selecting program settings.
R
Moving through vertical menus or lists.
R
Exiting horizontal menus.
R
Moving through horizontal menus.
R
Exiting vertical menus.
R
Fast forward or reverse for audio CD playback.
R