I just realized this while searching for parts to address P/S line leaks. I thought my lines are OE (and likely never been replaced), and "COHLINE" just meant something regarding what type of line it is, but it looks like it's the name of a brand. So I'm wondering if the OE part I were to pick up from the stealership is labeled "COHLINE," or if I have an OEM/aftermarket part installed on my car. Whether or not COHLINE is OEM is irrelevant to me.
OE:
https://www.fcpeuro.com/products/bmw...-32412282354oe
COHLINE:
https://www.fcpeuro.com/products/bmw...em-32412282354
Don't mind the fact that OE is cheaper than COHLINE.