Engine coolant level sensor

Warning

Be careful if the car is warm. The coolant is hot and there is a risk of burns from the intake manifold.

To remove

The sensor is integrated with the expansion tank. Therefore, the whole reservoir unit must be changed.

Open the drain plug and empty all the coolant. Take off the expansion tank cap to speed up draining.

Detach the upper radiator hoses from the expansion tank.

Unplug the level sensor connector.

Remove the expansion tank retaining bolt.

Lift up the expansion tank and detach the bottom radiator hose.

To fit

Connect the bottom radiator hose and refit the expansion tank.

Fit the expansion tank retaining bolt.

Plug in the level sensor connector.

Fit the upper radiator hoses to the expansion tank.

Make sure the radiator drain plug is tight, top up with coolant and check for leaks.

Start the engine and run it warm with the heater controls on max. heat until the radiator fans starts.

Check the coolant level and freezing point. Rectify if necessary.