2008 Mercedes C-Class Owner's Manual - Page 111

Controls in detail Lighting Daytime running lamp mode In Canada the daytime running lamp mode is mandatory and therefore in a constant mode. In the USA the daytime running lamp mode is deactivated by default. Activate the daytime running lamp mode using the control system, see "Setting daytime running lamp mode (USA only)" ( page 171). Turn exterior lamp switch to position M or *. When the engine is running, the low beam headlamps are switched on. In low ambient light conditions, the following lamps will switch on additionally: Tail and parking lamps License plate lamps Side marker lamps Canada only The corresponding exterior lamps switch on ( page 108). USA only i With the exterior lamp switch in position M or *, you cannot switch on the high beam headlamps. The high beam flasher is available at all times. For nighttime driving you should turn the exterior lamp switch to position B to permit activation of the high beam headlamps. i With the daytime running lamp mode activated and the exterior lamp switch in position M, you cannot switch on the high beam headlamps. The high beam flasher is available at all times. For nighttime driving you should turn the exterior lamp switch to position B or * to permit activation of the high beam headlamps. Vehicles with automatic transmission*: When the engine is running and you shift from a driving position to position N or P, with the vehicle at a standstill the low beam headlamps will switch off with a delay of 3-minutes. When the engine is running, and you turn the exterior lamp switch to position C, the low beam headlamps, the tail and parking lamps, the license plate lamp and the side marker lamps switch on. turn the exterior lamp switch to position B, the manual headlamp mode has priority over the daytime running lamp mode. When the engine is running, and you turn the exterior lamp switch to position C or B, the manual headlamp mode has priority over the daytime running lamp mode. The corresponding exterior lamps switch on ( page 108). i With the daytime running lamp mode activated and the engine running, the low beam headlamps cannot be switched off manually. 110