I don’t know if it applies to all N63R engines or not, and a cursory search for online resources didn’t turn up much, but I got this letter for both of our BMWs (2019 750i and 2018 M550).
There is more info in the letter, including a brief FAQ, and I’m happy to post the other pages if there is interest.
If you’ve already paid for a replacement out of pocket, visit BMW Owner Reimbursement Program to request reimbursement.
