2006 Mercedes R-Class Owner's Manual - Page 170

Controls in detail Control system Press button k or j repeatedly until the coolant temperature appears in the multifunction display. 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. i You can select whether the digital speedometer or the outside temperature is to be displayed. You can change the setting in the submenu Instr. cluster via the function Status line display, see "Selecting display (digital speedometer or outside temperature) for status indicator" ( page 179). ! 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 i During severe operating conditions, e.g. stop-and-go city traffic, the coolant temperature may rise close to 248°F (120°C). Excessive coolant temperature triggers a warning message in the multifunction display ( page 434). Outside temperature 169