Hi guys!

I have a strange issue with my HVAC on my euro 1984 e23. I tried search the forums and nobody seams to have this. I have the automatic climate version of hvac, it worked for some time but now i have this issue, i can only get VERRY HOT or ICE cold air on it.

If i use the recirculation ( first button) ii hear the compressor engaging and ice cold air is blown. on every other button is hot. I changed - blower, sensors, and relay (blower is new, speed sensors are old from TEZ), i changed the switch panel and heater control - used but working. and I cannot find any issues. I have vacuum, i adapted a vacuum pump from another brand, and the vacuum reservoir is changed and the vacuum pump stops. The temperature valve in the motor compartment is operating ( new old stock )and also i changed the vacuumatic valve for it (new old stock as well ).


Did you ever encountered such issue, or maby you can point me to a place to start again

Many thanks!
Alexandru