Hella Coolant Level Sensor 6PR005923081

A coolant level sensor in a car is a component that helps monitor the level of coolant in the car's engine. It provides information to the car's computer system, allowing it to alert the driver if the coolant level is too low.

This sensor works by using electrical resistance to measure the level of coolant in the reservoir or radiator. It is typically equipped with a float mechanism that moves up and down as the coolant level changes.

This movement is then converted into an electrical signal that is sent to the car's computer system for processing. If the coolant level drops below a certain point, the sensor triggers a warning light or message on the car's dashboard to alert the driver to add more coolant.