2008 Mercedes R-Class Owner's Manual - Page 166

Controls in detail Control system AUDIO menu The functions in the AUDIO menu operate the audio equipment which you currently have turned on. ! Excessive coolant temperature triggers a warning message in the multifunction display ( page 448). The engine should not be operated with a coolant temperature above 248°F (120°C). Doing so may cause serious engine damage which is not covered by the Mercedes-Benz Limited Warranty. Digital speedometer If no audio equipment is currently turned on, the message AUDIO off appears in the multifunction display. The following functions are available: Function Selecting radio station Page 166 167 Selecting satellite radio station* 166 Outside temperature i During severe operating conditions, e.g. stop-and-go city traffic, the coolant temperature may rise close to 248°F (120°C). Operating CD player i You can select whether the digital speedometer or the outside temperature is to be displayed. You can change the setting in the submenu Instrument Cluster via the function Status Line Display, see "Selecting display (digital speedometer or outside temperature) for status indicator" ( page 175). Calling up digital speedometer or outside temperature Press button k or j repeatedly until the digital speedometer or the outside temperature appears in the multifunction display. 165