WARNING: This page is about a different car, the 2022 BMW X7, 2021 BMW X7, 2020 BMW X7, and 2019 BMW X7. However, it is still accessible from the selected car via links, so may be relevant.
Replace screws (marks).
Parts:
Screws
Guide in and position the oil deflector (1)
.
Tighten screws (marks) in crosswise sequence using the special tool 0 490 504 (00 9 120).