2008 Mercedes S-Class Owner's Manual - Page 383

Controls in detail Windshield wipers i When the windshield wipers are switched on and you brake the vehicle to a stop, the wipers operate more slowly. Turn the combination switch to position U or V. The wipers move across the windshield. Afterward, the wiping intervals are determined by the wetness of the windshield. After the initial wipe, pauses between wipes are automatically controlled by the rain sensor. Single wipe Press the combination switch briefly in the direction of arrow 2 ( page 381) to the resistance point. The windshield wipers wipe one time without washer fluid. Wiping with windshield washer fluid Press the combination switch in the direction of arrow 2 ( page 381) past the resistance point. The windshield wiper operates with washer fluid. Intermittent wiping Only switch on intermittent wiping under wet weather conditions or in the presence of precipitation. ! 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. i Intermittent wiping is interrupted when the vehicle is at a standstill and a front door is opened. This protects persons getting into or out of the vehicle from being sprayed. Intermittent wiping will be continued when all doors are closed and the automatic transmission is set to position D or R or the wiper setting is changed using the combination switch ! 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. i To prevent smears on the windshield or noisy/chattering wiper blades, wipe with windshield washer fluid every now and then even when it is raining. For information on filling up the washer reservoir, see "Windshield washer system and headlamp cleaning system" ( page 548). 382