2010 Mercedes S-Class Owner's Manual - Page 302

300 Lighting daytime running lamp mode on or off (USA only)" (Y page 234). X Turn the exterior lamp switch to position $ or c. When the engine is running and the ambient light is bright, the daytime running lamps come on. In low ambient lighting conditions, the following lamps will come on additionally: The corresponding exterior lamps come on (Y page 298). Fog lamps Fog lamps cannot be switched on with the exterior lamp switch in position c or $. G Warning! Controls in detail RLow-beam RParking headlamps lamps38 Rgreen indicator lamp T in the exterior lamp switch You can only switch on the high-beam headlamps when the low-beam headlamps are on. The high-beam flasher is available at all times. Canada only When the engine is running, and you Rshift In low ambient lighting or foggy conditions, only switch from position c to L with the vehicle at a standstill in a safe location. Switching from c to L will briefly switch off the headlamps. Doing so while driving in low ambient lighting conditions may result in an accident. from a driving position to park position P with the vehicle at a standstill or the electronic parking brake is engaged, the daytime running lamps or the low-beam headlamps will go out with a delay of 3 minutes the exterior lamp switch to position T, the daytime running lamps and the parking lamps38 come on in bright ambient lighting conditions. the exterior lamp switch to position L, the manual headlamp mode has priority over the daytime running lamp mode The corresponding exterior lamps come on (Y page 298). Rturn Front fog lamps will operate with the parking lamps and/or the low-beam headlamps on. The rear fog lamp can only be switched on with the exterior lamp switch in position L. Fog lamps should only be used in conjunction with low-beam headlamps. Consult your State or Province Motor Vehicle Regulations regarding permissible lamp operation. X Switch on the ignition. X Turn the exterior lamp switch to position T or L (Y page 298). Vehicles with front fog lamps X Rturn USA only When the engine is running, and you turn the exterior lamp switch to position T or L, the manual headlamp mode has priority over the daytime running lamp mode. 38 When Switching on front fog lamps: Pull out the exterior lamp switch to first stop (Y page 298). The green indicator lamp N in the exterior lamp switch comes on. X Switching on rear fog lamp: Pull out the exterior lamp switch to second stop. The rear fog lamp, the front fog lamps, the green N and the yellow indicator lamp R in the exterior lamp switch come on. X Switching off front fog lamps/rear fog lamp: Push in the exterior lamp switch to its stop. the parking lamps are on, the tail lamps, the license plate lamps, the side marker lamps, and the instrument cluster illumination are also on.