33 00 ... Notes On Repairing Threads
WARNING: This page is about a different car, the 2007 BMW 550i and 2006 BMW 550i. 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 procedure described in the example.