33 00 ... Notes On Repairing Threads
WARNING: This page is about a different car, the 2008 BMW Alpina and 2007 BMW Alpina. However, it is still accessible from the selected car via links, so may be relevant.
IMPORTANT:
Install Helicoil thread inserts so that they are flush with the original thread.
NOTE:
Damaged threads in the frame side member may be repaired with Helicoil thread inserts. Comply with the procedures as described.
Courtesy of BMW OF NORTH AMERICA, INC.