How do I remove and install a coolant level sensor in the overflow jug, I have already tried pulling out with a pliers but only maqnaged to break it off at the bottle. Thanks

 

I have a 2003 C70 and replaced my tank last week due to leak. The sensor is in the bottom under the tank. Pull the power steering tank and move it to the side. No need to disconect . Now, pull the expansion tank and under the tank is the level probe and the electic connection. I just pulled evenly on the probe and it came out, same with putting it in the tank.
You may need to remove the coolent tank, one hose plus the over flow tube.

Cb