2005 Mercedes CLK-Class Owner's Manual - Page 157

Controls in detail Control system Setting daytime running lamp mode (USA only) i If you turn the exterior lamp switch to another position, the corresponding lamp(s) will switch on. For safety reasons, resetting the Lighting submenu to factory settings ( page 147) while driving will not deactivate the daytime running lamp mode. The following message appears in the multifunction display: Lighting - Cannot be completely reset to factory settings while driving. i This function is not available in countries where the daytime running lamp mode is mandatory and therefore in a constant mode. Move the selection marker with button æ or ç to the Lighting submenu. Press button j or k repeatedly until the message Lamp circuit headlamp appears in the multifunction display. The selection marker is on the current setting. Press æ or ç to select manual operation (manual) or daytime running lamp mode (constant) activated. With daytime running lamp mode activated and the exterior lamp switch in position M or U the low beam headlamps are switched on when the engine is running. In low ambient light conditions the following lamps will switch on additionally: Parking lamps Tail lamps License plate lamps Side marker lamps For more information on the daytime running lamp mode, see "Lighting" ( page 124). 155