Height adjustment
WARNING: This page does not describe the selected car, but rather 18 other vehicles, including the 2015 BMW Alpina B7L xDrive, 2015 BMW Alpina B7 xDrive, 2015 BMW 750i xDrive, 2015 BMW 750Li xDrive, and 2015 BMW 740Li xDrive. However, it is still accessible from the selected car via links, so may be relevant.
Adjust height of glass slide/tilt sunroof cover (1) to roof (2) using special tool 00 9 315 (gap dimension wedge).
Press glass slide/tilt sunroof cover at front and rear up or down until ideal position is reached.