2008 Mercedes SLK-Class Owner's Manual - Page 199

Controls in detail Audio system Returning sound functions to factory settings Press O button to call up settings menu in the display. Adjusting balance Press P button. BALANCE appears in the display. Returning volume distribution to factory settings Press P button to call up settings menu in the display. Press RES soft key briefly; the respective sound function is reset to its center level. or Press and hold RES soft key until RESET appears in the display. The sound settings for bass and treble are returned to their center level and the volume is set to a predefined level. The radio switches back to the standard radio menu 4 seconds after the last soft key is pressed. or Press X or Y soft key. The volume is distributed between the left and right sides of the vehicle. or Press RES soft key briefly. The balance is reset to its center level. The radio switches back to the standard radio menu 8 seconds after the last button is pressed. Press RES soft key briefly; the respective volume distribution is reset to its center (flat) level. Press and hold RES soft key until RESET appears in the display. The volume distribution settings for the balance is set to the center level. The radio switches back to the standard radio menu 4 seconds after the last soft key is pressed. 198