Thanks for posting back with the info we need to make correct suggestions. If was not clear in the original post as to which of the HVAC systems was installed in your X...people can only make assumption based from there perspective...and in this case...I (incorrectly) assumed you had the auto IHKA control panel...not the manual IHKR control panel.

The added info you provided suggests that the bowden cables attached to the rotary knobs of the manual IHKR have come loose...thus the selection and activation of the air flaps isn't working.

(there's three bowden cables (#10) that connect to the 3 positions (floor vents, dash vents, defrost vents)

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Q {BMW CCA Member #191509}
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