2005 Mercedes C-Class Owner's Manual - Page 209

Controls in detail Audio system Switching on random Press RDM soft key. RDM appears in the display. Switching on repeat Press RPT soft key. RPT appears in the display. Switching off repeat Press RPT soft key again. Pause function The CD changer mode is interrupted by an incoming call on the telephone* ( page 213). Switching on pause function A randomly selected track is played. Switching off random Press RDM soft key again. Repeat The track being played is repeated until the repeat function is switched off. Press U button. The CD changer mode is interrupted and PAUSE appears in the display. Switching off pause function Press U button. The CD changer mode is active again. i When you start the RPT function, the RDM function is automatically switched off. 207