Bingo - maybe. Fuse F6 (behind the glovebox) powers the PDC system, the electrochromic rear-view mirror and the adaptive headlight control....

Not sure how this ties the AE operation to the PDC going crazy but you should certainly check out F6 and it's contacts.

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Wayne
2005 BMW X5 3.0d (b 02/05)
2001 BMW F650GS Dakar (b 06/01)