1995 318I A/C question
I have a 318I, that blows only hot air. Here is what I have done - The system charge is good. At 85 degrees ambient, I have 30-40 on the low side 140 - 160 on the high side. The lines are cold to the firewall, and the evap box underneath is cold.
I have replaced the switch panel, the a/c ecu (behind the change holder). This car has manual controls.
The question (s) - when the dials are set to 64, should the heater control valve shut off the flow to the heater cores (it is presently not) and is there some sort of soloniod that opens a door from the evap box to allow the cold air into the cabin? It appears to be a 2 fold problem - is there 1 solution that fixes both?