Hey guys, my ac hasn't been working and its super hot where I'm at. The heat works on my top(defroster) vents,feet vents, and the rear vents but not in the center vents. Tried adjusting everything on idrive, replaced the blower motor and resistor already. Whats next, heater valve control? Please, help! I've spent 500 on parts and diagnosis already and no one seems to be able to pin point the problem. I also added the codes my car is throwing off on the bottom, can you let me know which parts I need to replace. Any insight would be greatly appreciated. Help a brotha out, this thing is sucking me dry.


-


CODES(also attached image):




S0072 NO COMMUNICATION POSSIBLE WITH: CONTROL CENTRE/CONTROL PANEL CENTRE CONSOLE


009C55 IHKA: FOGGING SENSOR


009C5C IHKA: EVAPORATOR TEMPERATURE SENSOR


009C60 IHKAHEAT EXCHANGER FOR HEATING SYSTEM, SENSOR RIGHT


009C67 IHKAHEAT EXCHANGER FOR HEATING SYSTEM, SENSOR LEFT


00E706 IHKA HEATER- AC SYSTEMS, LIN BUS FAULT

 

what parts did you replace, all of those sensors? are you sure your IHKA isn't bad?? they do fail from time to time, I used to replace them in E36s, E39s, and E38s at my shop fairly regularly.

 

Hi did you find out anything regarding this issue?

 

thanks for the reply guys. turns out it was my climate control unit. probably the buttons or the butt connector but now it works! replaced the unit/trim and everything works flawlessly!