500SEL (126.037) V8-5.0L (117.963) (1984)
Coolant: Description and Operation
Coolant/Water Specifications
Water
Use water which is clean and not too hard. Drinking water frequently, but not always, satisfies requirements. The content of dissolved substances in the
water may be of significance for the occurrence of corrosion. If the water quality is not known, distilled or fully desalinated water should be used.
Anticorrosion/antifreeze agent
The anticorrosion/antifreeze agent performs the following tasks:
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provides adequate corrosion and cavity protection for all components
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provides antifreeze protection
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Increases boiling point
About 50 % by vol. of anticorrosion/antifreeze agent must be added to the water. This concentration offers antifreeze protection down to about -37 °C A
higher concentration is only recommended for even lower ambient temperatures. More than 55 % by vol. anticorrosion/antifreeze agent reduces the
antifreeze protection and impairs the dissipation of heat.
An anticorrosion/antifreeze concentration of 55 % by vol. offers antifreeze protection down to about -45 °C. Anticorrosion/antifreeze agent increases the
boiling point, which means that the coolant does not evaporate as rapidly. The ejection of coolant is avoided at high coolant temperatures.
Use only approved anticorrosion/antifreeze agents.