It sounds like the symptoms I am experiencing are common. A new control unit will be in order. Let's see how the dealer does on this one.... In the meantime I have been driving around with my spare tire and spare tire holder out because I took it apart to get at the PDC guts. I wonder if the dealer will take my word for it and let me swap out the control units. It's easier than having the X5 in there for half a day.

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