Coolant level sensor

[newkid]

Hi guys, hoping someone can quickly help as meant to be away in the morning to the 80's rewind concert. Was giving the van a few checks today before we set off and noticed we are losing coolant from the coolant level sensor area, upon trying to tighten up the sensor I noticed that once its so far down it just keeps spinning, I presume this isn't right and a new one should rectify this?

[kevtherev]

Just get some PTFE tape and wind it on the thread several times

[newkid]

Thanks Kev, we tried this and it worked for about an hour Hopefully its third time lucky for us as thats the second replacement bottle to fail, both were from ebay. This time Ive went with Brickwerks item as we have been using them for parts since signing up on here with them coming highly recommended.