Primary function is to cool the engine and prevent the liquid from freezing.It also allows the heater to operate. This is a basic function of all vehicles and internal combustion engines that are liquid cooled.
This is an older thread, you may not receive a response, and could
be reviving an old thread. Please consider creating a new thread.
BenzWorld.org forum is one of the largest Mercedes-Benz owner websites offering the most comprehensive collection of Mercedes-Benz information anywhere in the world. The site includes MB Forums, News, Galleries, Publications, Classifieds, Events and much more!