2004 Mercedes CL-Class Owner's Manual - Page 52

Getting started Driving Single wipe Press switch briefly in the direction of arrow 1. The windshield wipers wipe one time without washer fluid. Wiping with windshield washer fluid Press switch in the direction of arrow 1 past the resistance point. The windshield wiper operates with washer fluid. For information on filling up the washer reservoir, see "Windshield washer system and headlamp cleaning system" ( page 269) or turn off the engine by pressing the KEYLESS-GO* start/stop button and open the driver's door (with the driver's door open, starter switch is in position 0, same as with SmartKey removed from starter switch) before attempting to remove any blockage. ! If anything blocks the windshield wipers (leaves, snow, etc.), switch them off immediately. For safety reasons, turn off the engine by turning the SmartKey to position 0 and withdraw SmartKey from starter switch Remove blockage. Turn the windshield wipers on again. If windshield wipers fail to function at all in switch position I, set the combination switch to the next highest wiper speed have the windshield wipers checked at the nearest authorized Mercedes-Benz Center 51