2009 Mercedes R-Class Owner's Manual - Page 125

Controls in detail Wipers suitable wiping interval depending on the wetness of the sensor surface automatically. Intermittent wiping will be continued when all doors are closed and Rthe automatic transmission is in drive position D or reverse gear R or Rthe ! Do not leave windshield wipers on an intermittent setting when the vehicle is taken to an automatic car wash or during windshield cleaning. Windshield 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 windshield. You should therefore switch off the windshield wipers when weather conditions are dry. X wiper setting is changed using the combination switch For information on filling up the washer reservoir, see "Washer system and headlamp cleaning system" (Y page 251). For information on cleaning the headlamps with washer fluid, see "Headlamp cleaning system" (Y page 119). Rear window wiper/washer Single wipe X Press the combination switch briefly in direction of arrow 1 to the resistance point. The windshield wipers wipe one time without washer fluid. Wiping with washer fluid X Turn the combination switch to position U or V. After the initial wipe, pauses between wipes are controlled by the rain sensor automatically. Press the combination switch in direction of arrow 1 past the resistance point. The windshield wipers operate with washer fluid. Combination switch 1 Rear window wiper switch % Wiping rear window with washer fluid & Intermittent wiping ( Rear window wiper off ) Wiping rear window with washer fluid Z 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. i To prevent smears on the windshield or noisy/chattering wiper blades, wipe with washer fluid every now and then even when it is raining. 123