Fan Switch, Radiator Switch

       Your engine needs to operate below a certain temperature to run smoothly and prevent damage.  The engine generates a lot of heat by burning fuel and through friction.  Your car is equipped with a cooling system to ensure that the engine does not get too hot.  The radiator fan switch automatically turns your radiator fan on when the coolant in the radiator reaches a certain temperature.  When the radiator fan switch fails, your fan will not turn on automatically and your engine may overheat which could potentially cause damage.  If your auxiliary fan switch or radiator fan switch has failed, replace it immediately to ensure that your radiator fans turn on when they should and are able to prevent serious engine damage.  The water temperature sensor is another component in your cooling system that sends an electrical signal to your water temperature gauge to display how hot the cooling system is.  If your temperature gauge seems stuck at either end of the gauge or just not reading correctly, the water temperature sensor may be faulty.  Replace your water temperature sensor today to better monitor your engine's temperature!  Find great deals on new radiator fan switch parts today here at FCP Groton! FCP carries fan switches for Volvo, BMW, Audi, VW and Mercedes.