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delayed A/C problem

I've got a similar problem on my 92 325i.  If I turn off the A/C, in about
2 minutes it gets cold, and little bits of ice fly out the vent.

I was thinking that maybe my microfilter is clogged, and not enough air flows
through, allowing the coils to freeze.  Does this make any sense?
But I've also heard that the 92 didn't have a microfilter.  True?

Thanks
Greg

gregs@domain.elided


- ----------------------------------------
From: John Roush <jroush@domain.elided>
Date: Tue, 3 Sep 1996 16:32:25 GMT
Subject: RE: <e28> a/c problem

It sounds/appears that your evaporator is freezing over.  Probably from an
expansion valve which lets the unit run below 32 degrees.  Possibly, you
could set the controls for less cooling and get more time before the total
freezing occurs.  Otherwise, if that is the real problem, it is an expensive
cure.

>I have a time delayed a/c problem.  It works fine for short trips and when
>it is first started but after about 2 hours it starts to blow warm air.  Any
>ideas?  TIA.
>