2002 Mercedes SL-Class Owner's Manual - Page 92

Instruments and controls Operation Driving Instrument cluster display 88 Practical hints Car care Technical data Index Combination switch Blocked windshield wiper If the windshield wiper becomes blocked (for example, due to snow), switch off the wiper. For safety reasons before removing ice or snow, remove key from steering lock. Remove blockage. Activate combination switch again (key in steering lock position 1). Windshield wiper smears If the windshield wiper smears the windshield, even during rain, activate the washer system as often as necessary. The fluid in the washer reservoir should be mixed in the correct ratio. Windshield and headlamp washer fluid mixing ratio For temperatures above freezing: MB Windshield Washer Concentrate "S" and water 1 part "S" to 100 parts water (40 ml "S" to 1 gallon water). For temperature below freezing: MB Windshield Washer Concentrate "S" and commercially available premixed windshield washer solvent/antifreeze. 1 part "S" to 100 parts solvent (40 ml "S" to 1 gallon solvent).