95 525i AC Problems

[JonE]

Thanks for the help. I ordered a new valve today and hope it will solve the problem. Hope to make the repair by mid-week. Did you also replace the "auxillary pump" pn your BMW, along with the valve? I found some info on this website about replacing the valve and it referred to an auxillary pump that is attached to the valve.

The aux pump primarily get warm coolant to the heater core quicker so that you have heat in the cabin sooner. Nice feature in cold climates, but certainly not necessary elsewhere. Not sure about the "cold", "cool" vent issue, whether there are stepper motors controlling the center vents separately or not. Of course, you've messed with the airflow vent "wheels" to rule that out? Also, my car has a center "mixer" that apparently controls or finetunes the amount of cold vs. warm air coming out the vents. I don't notice much difference though. Sounds like the water valve replacement did the trick, though!

[winfred]

that thing works great with the heater when the car has been on the road for around 20 minutes, the same for the independant controls, the mixer doesn't really do anything for the ac

my car has a center "mixer" that apparently controls or finetunes the amount of cold vs. warm air coming out the vents. I don't notice much difference though.

[MotoMan]

Hey there CBC funny you should mention this. I have as the board is aware been struggling with the exact same issues. I have since replaced the sword, checked the a/c panel, had the a/c system regassed and confirmed that everything is in order. I have to still do the heater valve the one i renewed seems to have been a dud, and i will hopefully also have the same success. Side note here is that i was told that incorrect a/c gas levels make the air uneven at the front vents, but then u have had this attended to. I do not think its the sword as i have had mine replaced with two other units to double check, if u figure it out please let us know,