E70 X5 - Front vents not working

[Daaaveee]

Hi all,

My 2008 E70 doesn't seem to want to blow any air out of the front vents, upper and lower, and will only blow to the screen when the demist function is pressed - we've been managing in the cold weather, but since its been hot, no AC in the front of the car is a problem! The 2nd and 3rd row blows cold, but the demist function is no use for the front as it only blows warm air in that mode.

I've checked codes and get the following:

Driver's side footwell module
3 errors
9CC8: Hall sensor FH passenger door defective
9CC6: Mirror heater passenger side defective
A8C2: Reversing light on the right is defective

Automatic heating/air conditioning
11 errors
E723: Message (KCAN: Status fitting disc V, 2D1)
9C4A: Engine back pressure
9C4B: Motor foot right
9C4C: Motor foot left
9C4D: Engine stratification left
9C4E: Engine ventilation on the left
9C4F: Engine ventilation right
9C50: Engine layering right
9C53: Engine layering rear left
E704: K-Can physical bus error
E729: Message (KCAN: Status Sensor AUC, 2D0)

There are also quite a few other K-Can/bus errors - maybe due to water ingress and damaging an electronic module perhaps? Not sure how to go about fault finding and fixing there!

Anyway, if anyone has any thoughts on how to sort the front ventilation problem, that would be greatly appreciated! Cheers.