I am having problem with the A/C on my 2000 BMW 323i. I just Changed the Compressor, Drier, Expansion valve. In march I changed all the lines high/low pressure lines and also changed the Drier as well. the air blow cold but not that cold. It cuts off for few minutes and then start to get cold, but I can tell the difference that its on blowing cold air, like it suppose too. need some suggestion what I have to do to get it work right. Does it has something to do with the radiator/AC fan. Speed makes any difference? what about the High Pressure switch, Evaporator?

SOURCE: A/C not blowing cold air

Hi daveyrichard,
Just a guess....it sounds as if your leaking refridgerant gas from your AC unit. Maybe you didn;t need to change the compressor. the leakage could be on either the high pressure or low pressure side....Something that may help is to mix up some soapy water, use plenty soap, then sponge the mixture around all the joints that you can see....go as far as you can and as close to the fire wall between the cabin and the engine compartment....With the AC turned on, look out for bubbles....If you see them, thats where your leakage is.....Hope that this imfo helps you to solve your problem and keep your cool.
Regards Johngee10

SOURCE: 2002 BMW 540I air/conditioner not blowing air at all.

It is the Final Stage Unit/Blower Motor Resistor - changed mine and the problem never came back. After two tows and drained batteries. Most mechanics don't seem to put this one togther - you have to demand it. Funny because it is a VERY COMMON problem in BMW.

SOURCE: 2001 bmw 325i AC blows warm

PROB NEEDS 2 JUST BE RECHARGED. BUT STAY AWAY FROM THE DEALER. IT IS ALWAYS 3 TIMES MORE THAN A PRIVATE SHOP

Harvey N Tawatao

• 3854 Answers
• Posted on Jun 29, 2009

SOURCE: The air conditioning blows only hot air

Is that your static pressure readings??? If that is your static pressure readings that's good. When the engine running and fan on high and a/c compressor clutch engaged you should have 25 to 35psi on your low side and 200 to 350psi on your high side. If the clutch is engaged and that is your readings, replace your a/c compressor. Keep me posted, be glad to help.

SOURCE: The a/c on my 2000 bmw 323i blows warm air when I

Sounds like your fan is not working. If it is electrical, may be bad relay, fuse or fan motor. If it is mechanical, most likely the clutch is bad.