2007 Mercedes GL-Class Owner's Manual - Page 65

Getting started Driving Switch on the ignition ( page 42). If windshield wipers fail to function at all in the combination switch position U or V, set the combination switch to the next higher wiper speed have the windshield wipers checked at the nearest authorized Mercedes-Benz Light Truck Center Intermittent wiping Only switch on intermittent wiping under wet weather conditions or in the presence of precipitation. When you select intermittent wiping, the rain sensor is activated. The rain sensor automatically sets a suitable wiping interval depending on the wetness of the sensor surface. ! Do not operate the windshield wipers when the windshield is dry. Dust that accumulates on a windshield might scratch the glass and/or damage the wiper blades when wiping occurs on a dry windshield. If it is necessary to operate the windshield wipers in dry weather conditions, always operate the windshield wipers with windshield washer fluid ( page 65). ! If anything blocks the windshield wipers (leaves, snow, etc.), switch them off immediately. For safety reasons, stop the vehicle in a safe location and remove SmartKey from starter switch 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. Remove blockage. Turn the windshield wipers on again. Switching on windshield wipers Turn the combination switch to the desired position depending on the intensity of the rain. M Windshield wipers off U Slow intermittent wiping Rain sensor operation with low sensitivity. V Fast intermittent wiping Rain sensor operation with high sensitivity. u Slow continuous wiping t Fast continuous wiping ! Do not leave windshield wipers on an intermittent setting when the vehicle is taken to an automatic car wash or during windshield cleaning. Wipers will operate in the presence of water sprayed on the windshield, and windshield wipers may be damaged as a result. ! If you have set intermittent wiping, dirt on the surface of the rain sensor or optical effects may cause the windshield wipers to wipe in an undesired fashion. This could then damage the windshield wiper blades or scratch the windows. You should therefore switch off the windshield wipers when weather conditions are dry. Turn the combination switch to position U or V. 64