The coolant level sensor is an important component of the cooling system. It is the one that controls the level of oJ and the timely response to the fall of antifreeze.

The coolant level sensor is fixed directly on the expansion system of the cooling system and is a float sensor. There is a magnet inside a ring-shaped float that moves up and down in accordance with the level of the oJ. Inside the body of the sensor is a sealed contact (herkon), which is controlled by a magnet. When the coolant level is down, the circuit is closed on the dashboard.


If the coolant level sensor stops sending the signal to the dashboard, it should be checked. To do this is easy: Remove the connector from the plug-in. Request the connector pins. To request the assistant to turn on the plug and look at the dashboard.

  • Remove the connector from the oJ level sensor.
  • Close the connector pins.
  • Ask the assistant to turn on the ignition and look at the dashboard.

If the low level of the cooling fluid is lit on the panel, the wiring is correct and the problem is in the sensor itself.

It is possible to control the level of antifreeze in the cooling system not only by means of a sensor, but also visually. Do not forget to periodically look at the expansion beam and visually determine the level of cooling fluid to avoid problems.




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