So, looks like the BMW PIDs are not out in public and my wanting to record coolant temp in Harry's is not going to be an easy thing. I've searched quite a bit and best I was able to find was this:
https://www.bimmerforums.com/forum/s...-specific-PIDs.
I will have to settle with monitoring coolant temp with a separate OBD scanner app but unfortunately won't be able to run it simultaneously w/ Harry's.