2011 Mercedes C-Class Owner's Manual - Page 169

Displays and operation If the coolant temperature rises above 248 ‡(120 †), do not drive any further as this could damage the engine. the buttons on the multifunction steering wheel. 167 Tachometer The red band in the tachometer indicates the engine's overrevving range. ! Do not drive in the overrevving range, as this could damage the engine. The fuel supply is interrupted to protect the engine when the red band is reached. Outside temperature display The outside temperature display is in the multifunction display. G Warning! The outside temperature indicator is not designed to serve as an ice-warning device and is therefore unsuitable for that purpose. Indicated temperatures just above the freezing point do not guarantee that the road surface is free of ice. The road may still be icy, especially in wooded areas or on bridges. : ; Multifunction display ~6 Makes/accepts or rejects/ends a call WX Adjusts the volume or operates the RACETIMER in AMG vehicles 8 Mute ? Activates voice control; see the separate operating instructions %Press briefly: Back Deactivates voice control Hides display messages %Press and hold: Selects the standard display Changes in the outside temperature are displayed after a short delay. Speedometer with segments The segments in the speedometer indicate which speed range is available. Cruise control mode: The segments light up from the stored speed to the maximum speed. = ? Operating the on-board computer The on-board computer is activated as soon as you turn the SmartKey to position 1 in the ignition lock. You can control the multifunction display and the settings in the on-board computer using A =; Calls up the menu and menu bar Z On-board computer and displays