Hanging in there and still driving the X5 we bought from New Country BMW in Hartford, PRoCT.
I would not bother reconnecting that fan as it is toast. I see you spending a little money on a new fan plus fitting. Doubt if dealer will interested in helping. I know I had a heck of a time just to get CPO work carried out and done right. 14 trips to $tealer in the first 2 months if I remember correctly.
Buy yourselves a nice big fire extinguisher for each vehicle. Time I replaced some of those we have.

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2021 X5 xDrive40i
2015 X5 xDrive35i MSport
(Traded) 2013 X5 xDrive35i