Mercedes-Benz S 450 4MATIC Operator's Manual page 582

Warning!
Washer solvent/antifreeze is highly flamma-
ble. Do not spill washer solvent/antifreeze
on hot engine parts, because it may ignite
and burn. You could be seriously burned.
To open washer fluid reservoir: Pull
tab of cap 1 upward.
Refill the reservoir with MB Windshield
Washer Concentrate and water (or
commercially available premixed wind-
shield washer solvent/antifreeze, de-
pending on ambient temperatures).
!
Always use washer solvent/antifreeze
G
where temperatures may fall below freezing
point. Failure to do so could result in damage to
the washer system/reservoir.
Only use washer fluid which is suitable for plastic
lenses. Improper washer fluid can damage the
plastic lenses of the headlamps.
Do not use distilled or de-ionized water in the
washer fluid reservoir. Otherwise, the washer
fluid level sensor could be damaged.
Operation
Engine compartment
To close washer fluid reservoir:
Press cap 1 onto filler hole until it en-
gages.
For more information, see "Windshield
washer system and headlamp cleaning
system" ( page 774).
581