[jonesy16]

I've search high and low (pun intended) for a guide to retrofitting HBA (option 5AC) to my 2018 530E. I know that I need a new turn signal stalk / clockspring assembly (part 61319436668 or equivalent) and I can find plenty of those online. My car already has all of the KAFAS equipment and includes diver assistance, parking assistance, etc., so that should be all the hardware I need.

I know that once I retrofit there is some programming to do, but I'm not sure on the exact details or process. And I believe there is some reinitialization of the donor clockspring (SZL?) assembly to get the steering angle sensor correct. Anyone have a more complete walkthrough or able to help on a volunteer / hire basis?

[David530e]

Did anyone help you with this? I'm in the same boat.