Ac compressor issue

[DoneRightBimmer]

My Ac compressor stopped working today and i have tracked it down to a damaged wire off the right side of the Compressor I believe is it the temp sensor see item 5 in the diagram.

http://www.realoem.com/bmw/enUS/showparts?id=BB13-USA-10-1992-E30-BMW-325i&diagId=64_1721

If i press on the wires the Compressor kicks on.

My question is can i remove this sensor without draining the refrigerant or do i have to drain it in order to replace it?

[uturn]

The sensor on the side of the compressor can be removed. It is only mounted to the housing. The sensor on the pre-1989 receiver-dryer are the ones that will open the system.

[DoneRightBimmer]

Thank You for the help.