Repair solution for studs
WARNING: This page is about a different car, the 2012 BMW 328i, 2011 BMW 328i, 2010 BMW 328i, and 2009 BMW 328i. However, it is still accessible from the selected car via links, so may be relevant.
Release screw (1).
Tightening torque 31 12 1AZ .
Raise lock nut (2) in area of bore and detach from front axle carrier.
Drive out studs (3) in upwards direction and remove/feed out through an opening in front axle carrier.
Installation:
Insert new screws from above.
Replace lock nut.