5. Subsequent Treatment Of Weld Joints

WARNING: This page is about a different car, the 2013 BMW Z4, 2012 BMW Z4, 2011 BMW Z4, 2010 BMW Z4, and 2009 BMW Z4. However, it is still accessible from the selected car via links, so may be relevant.

When grinding a weld seam, do not grind thin the base material next to the seam.
After joining, clean all weld seams and spots with a stainless steel wire brush.
Remove burnt paint with a stainless steel wire brush.
All weld joints sealed off with body sealing compound in original state must be primed and sealed off again thoroughly after repairing. Replace damaged or removed anti-drumming layers.