Re: A/C Temperature normal? (archive)

I recently bought an 89 525i,Cheep, and wonder if my air conditioning works properly. Background information is the air did not work when I bough it. Since the purchase I added about 3 lbs of freon in the middle of May. The system was working fine in 80 F, but I was concerned about why it was so low on R-12. I took it back 3 days later to check for leeks and it passed. The temperature in Fort Worth Texas has been over 100 F and my air takes forever to cool. Is this normal? It will pull the temperature down eventually when driving on the highway but takes too long in my opinion. I use to have a 1980 320i and they had the worse air conditioners. I was under the impression that they had corrected the problem in these cars. I would have paid more attention to this put I had to fix the water pump, cracked head, and leaking radiator. I thought fixing the cooling problem would change things. I checked the servomotors on the air ducts and they appear to work. I looked at the sight glass on the air conditioner and I could see streaks of air passing by. No foaming just something flowing across it. Do I need more freon? The electric fan works and the fan clutch. How complicated does this system get? I don�t have the climate control system, just the plane one. I also can�t figure out where the air is drawn from when I set it to re-circulation. Does it draw it from behind the dash or is it supposed to be re-circulated from one of the vents? None of my vents seem to re-circulate the air when I turn that function on. I read in Bentley manual that it has temperature sensors in the evaporator, heater core, and cabinet. Could a bad one miss the system up? Or would I be able to manually override this by setting the temperature control all the way over until it clicks. I also notice that the fan speed shoots up and slows down. I am assuming this is just a bad control knob but wonder if the integrated climate control unit could mess things up too. Basically could anyone tell me a good way to narrow things down?

I checked for a micro filter today. I don�t have one. I did pull out a long wing looking object that was not a filter. It was located in front of the evaporator. What is this? I pulled an electrical connection from the unit and removed it. When I tried to run the air conditioner the blower motor did not run.
The good news is I cleared a twig from one of the flaps at the blower motor and when I reassembled everything the switch for the fan speed started to work again. I assume that that it�s related to the wing thing. I never messed with the control switches.
I would like to shed some light on haw this things work. The outside air flaps at the blower motor close about � when the air is on, and then completely close for re-circulation. I assume the air is re-circulated from behind the dash and not a vent. I also seem to have more air flow. Could be the fan speed working correctly.

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