I did mine last year and I think I just used loctite weld (like J-B but 15 min. set time). If I remember right it has a big surface area to stick to, but just make sure you rough-up and clean the surfaces.

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1988 325is (purchased new) sold
2004 X5 3.0 2005 X3 2.5
2008 X5 3.0 (new to me)