I bought this from the dealer only to find out it was my blower that had the issue. Unfortunately I was not aware that this part is non refundable. Brand new in box my loss is your gain original price if you can find out is $150.00 . willing to let it go for $100. plus shipping.
part no is 64-11-9-265-892 blower regulator.

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2004 BMW X5 >4.4i Retrofit 4.8 Rear Bumper, Extended Flares, 4.8 exhaust ,Bull guard, Blacknight gauge cluster.
2009 BMW X5 >35D -Stage 2 DUDMD tune, full delete ATM catted DP, Midpipes, EGRracepipe, swirlflaps.
Sutphin TCU v3.0 Tune *Upgrade ATM FMIC
2005 Audi A4 B6 GIAC Stage 5
*to be installed