If you enter your VIN here:
https://www.bmwusa.com/owners-manuals.html
You can find some documentation, in addition to the owner’s manual. One of the files (for me) was a maintenance schedule. If you don’t see it for your VIN, try using others (I copied from dealer sites near me) from other model years. Having looked at several, they seem to be largely the same despite differences in model years. It may be close enough