If installed: Remove the auxiliary heater (additional work AW no: 31 11 905)
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.
Remove the front section of the front wheel arch cover
NOTE:
To provide a better overview: Schematic diagram with partially hidden components.