Both Arnotts were replaced today in Mesa, X5 was ready around 2:30, picked it up at 4... looked fine in the parking lot. Stopped on the way home for about hour and a half, leveling was fine when I left. Backed into my garage at 6, and as soon as the engine was shut off the compressor kicked in and a loud hissing noise was audible. Saw a couple of DIY videos but the vehicle is too low to get under with a flashlight, will call the tomorrow.
I just feel better letting it all out here...
Lev