2003 Mercedes S-Class Owner's Manual - Page 122

Controls in detail Lighting Daytime running lamp mode Turn exterior lamp switch to position M or U. When the engine is running, the low beam headlamps are automatically switched on. In low ambient light conditions the parking lamps will also switch on. Canada only When you shift from a driving position to position N or P, the low beam switches off (with a three-minute delay). For nighttime driving you should turn the exterior lamp switch to position B to permit activation of the high beam headlamps. USA only The high beam headlamps can also be activated when driving with the daytime running lamp mode activated and exterior lamp switch in position M. To activate the daytime running lamp mode, see "Setting daytime running lamp mode (USA only)" ( page 151). Locator lighting and night security illumination For information on locator lighting and night security illumination, see ( page 151) and ( page 152). Switching on front fog lamps Make sure that the low beam headlamps are switched on. Pull out exterior lamp switch to first stop. The green indicator lamp ‡ in the lamp switch lights up. i See notes on the exterior lamp switch ( page 120). i Fog lamps will operate with the parking lamps and/or the low beam headlamps on. Fog lamps should only be used in conjunction with low beam headlamps. Consult your State or Province Motor Vehicle Regulations regarding allowable lamp operation. 122