I did a few more tests a few days ago. My BMW DIS indicated that I had a clutch (magnetic coupling) problem, or.,...that it was Inactive. I cut the wire (actually was already cut,...with a crimped connector,...so I just undid the crimped connector) and put 12 volts directly to the clutch,....nothing happened. I checked the clutch wire to ground resistance with my ohmmeter and got no reading.

Lastly, I tried turning the center portion of the compressor clutch assembly, and was not able to turn it. Thinking this could mean that the compressor came apart and is seized,...which perhaps in turn blew the thermal fuse,.....there was some clattering from the area of the compressor for a few seconds while it was idling in front of my garage,.....I shut it off fairly quickly to do a visual,...saw nothing,....restarted,.....no noise now,....also no A/C When I ran a quick errand.

BTW, I duplicated all the above proceedures on my Land Rover. Disconnected the compressor from its power lead,....provided 12 volts directly to the compressor and it clicked on nicely,...also was able to turn the center portion of the compressor/clutch with little effort.