James, it makes sense in your case to consider replacing the Transfer Case. Also, have you pulled the glove box? There’s a TSB that says there’s been issues with wires in the dash, behind the glove box on e70s made before 2011 that wires were being cut by the sharp metal dash and the “fix is to wrap in felt tape”. Think we discussed this over text.. Mine was wrapped in tape, but when I removed the tape I found two or three wires had been chaffed, and a wire at the suspension control module(accessible on the side of the dash) wasn’t plugged in all the way.


Note the sharp metal of the dash



This was my favorite. The blower motor wire hanging by a thread... No wonder BMWs have burned down because of this harness/plug...

Note the sharp metal...

The fix, automotive carpet, spray glued to metal and around the wiring.

I mention this TSB because it talks about my code 5DEA and lists many other totally random codes, including can bus, transfer case and many other codes....





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