67 31 560 Removing and installing/replacing drive unit for thigh support
WARNING: This page is about a different car, the 2011 BMW X5. However, it is still accessible from the selected car via links, so may be relevant.
This operation is described in:
"Removing the drive unit for thigh support . See 52 17 023 REMOVING AND INSTALLING/REPLACING ADJUSTING UNIT FOR THIGH SUPPORT ON LEFT OR RIGHT FRONT SEAT or 52 16 023 REMOVING AND INSTALLING/REPLACING ADJUSTING UNIT FOR THIGH SUPPORT ON LEFT OR RIGHT FRONT SEAT .