^still on original antenna
Sadly, I've seen posts of people needing to replace antenna parts on this forum.
Yeah, knowing as much as you can about your car really pays off with BMW's. I dont plan on ever going 100% DIY, but you can save so much on repair if you take the time to understand the situation.
I dont go for the cheapest, or most expensive, I try to go with what's right based on the situation...My default is OEM when available, but some parts are only available OE so sometimes I get forced to that with critical parts. Or sometimes non OEM but reputable manufacturer-made, I can go with that too. Still expensive to maintain these trucks, but a lot less so.
OP, Your CSV is a variable displacement compressor, and there are a few extra steps in the diagnostic process to look into when working with these. I went through a lot of grief before arriving at a diagnosis with mine.