2011 Mercedes S-Class Owner's Manual - Page 367

Displays and operation The coolant temperature gauge is in the instrument cluster on the left-hand side. Under normal operating conditions and with the specified coolant level, the coolant temperature may rise to 248 ‡ (120 †). the buttons on the multifunction steering wheel. 365 ! If the coolant temperature is too high a display message is shown. If the coolant temperature rises above 248 ‡(120 †), do not drive any further as this could damage the engine. 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. : Multifunction display ~ Rejects or ends a call 6 Makes or accepts a call Switches to the redial memory WX Adjusts the volume or operates the RACETIMER in AMG vehicles 8 Mute ? Switches on the Voice Control System; see the separate operating instructions %Press briefly: Back Switches off the Voice Control System Hides display messages or calls up the last Trip menu function used 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. = Changes in the outside temperature are displayed after a short delay. Operating the on-board computer The on-board computer is activated as soon as you turn the key to position 2 in the ignition lock. You can control the multifunction display and the settings in the on-board computer using ? Z On-board computer and displays