Like ESP! I just crawled underneath (I'm getting too old for this!) and removed the tray to check the sensor wiring. That part looks fine but I can see a connector on the top side of the compressor that looks a bit ratched. I can barely get my hand up there but with a little touch a red wire came free. The compressor still comes on for a second when I start the car so it's obviously not the main power (it's too small too).

Could that be my problem?

Next question - how do I get to the sucker?

I left my disks out at the lake (wife got sick and we had to come home) so all I have is a 320E haynes manual (??) and the "Bible". I see there's an air duct that might get me closer but I'm not sure I'll be able to reach the screws. It looks REALLY ugly from on top.