Yes, X5 was an E53, X3 is an '05. I'm not sure how it's supposed to fit in the holder and I think the X5 jack is slightly longer and doesn't fit like it is supposed to, but it does fit. On both I wrap the jack in a rag to keep it from rattling and so that I have a rag handy when I use the jack.

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