42 Multifunction steering wheel Multifunction steering wheel At a glance Function Page D Parking brake 166 E FleetBoard (see the manu- facturer's operating instructions) F Device mounting bracket G Auxiliary heating timer 102 H Ï Applies/releases the four-wheel park- ing brake 166 I £ Switches engine pre- heating on/off 106 J J Switching the 12 V socket on/off 91 K È Switches radiator quick cleaning sys- tem on/off 191 L ¿ Opens/closes the side windows 60 M 12 V socket 91 N T Switches on the mir- ror heating 72 U Switches off the mir- ror heating 72 O 24 V socket 91 Function Page Operating the on-board computer:
115 u Selects the next main menu/next entry in the input window, increases or resets value t Selects the previous main menu/previous entry in the input window or decreases value r Next menu window/next menu bar down in the input window s Previous menu window/ next menu bar up in the input window 9 Opens and closes input window/acknowledges event window Ú Stores/displays the favour- ite menu window W Increases the volume: Audio 122 Telephone 121 X Reduces the volume: Audio 122 Telephone 121