Mercedes-Benz R-Class 2009 Owners Manual - Manual (Page 409)

Fuels, coolants, lubricants etc.
407
Model Approximate freeze protection
-35‡ (-37†) -49‡ (-45†)
Cooling system All models 5.0 US qt (4.75 l) 5.5 US qt (5.2 l)
Washer system and headlamp
cleaning system
G Warning!
Washer solvent/antifreeze is highly
flammable. Do not spill washer solvent/
antifreeze on hot engine parts, because it
may ignite and burn. You could be seriously
burned.
Washer fluid mixing ratio
For temperatures above freezing point, use
MB Windshield Washer Concentrate “MB
SummerFit” and water:
R 1 part “MB SummerFit” to 100 parts water
(1.34 fl oz [40 ml] “MB SummerFit” to 1 gal
[4.0 l] water)
For temperatures below freezing point, use
MB Windshield Washer Concentrate “MB
SummerFit” and commercially available
premixed washer solvent/antifreeze:
R 1 part “MB SummerFit” to 100 parts
solvent
(1.34 fl oz [40 ml] “MB SummerFit” to 1 gal
[4.0 l] solvent)
Technical data
Z