Air Conditioning Issue

[WOLFN8TR]

Ya it does sound like a sensor.


Bayerische-Motoren-Werke

[telijah]

I wonder if a sticking water valve could do this also? #2 here: http://www.realoem.com/bmw/showparts...90&hg=64&fg=18

Or the pressure sensor, #13 here: http://www.realoem.com/bmw/showparts...70&hg=64&fg=60

[Ryans323i]

..........
Maybe I should look at that radiator fan deal. I noticed that you cant "hear" the fan when it is on like in most cars. I thought it was normal but it may be running at low RPM. Should I hear the fan run? Mine runs and I can feel it but it doesnt make the typical fan kicking on noise. Stays quiet.

Drove my car today and made sure to pay attention to this. I can not hear my fan kick on.

[mLuMaN83]

I noticed today when I got back in the car from the grocery store when it failed to pump cold again, that the passenger and driver vents blew a little cooler than the center vents. Nothing changes it. Only thing that makes it go cold again is to turn off the car and start it again.

?

[Johnmadd]

Do you have the knob in between your center vents turned all the way on blue, I think its 3 dots.

[danewilson77]

Classic low charge symptoms bro.

Sent from D.C.

[mLuMaN83]

Hmmm..

I guess I should try to charge it more. Put a little throttle on it while I do so. I thought it was low charge before but the whole ice cold then stops seemed odd.

EDIT: Just tried to refill. Gauge wasnt acting right at all. Either I have an issue in the system or that gauge is crap. Think I may try one of those deals with the trigger gauge.

[danewilson77]

Are you evacuating prior to recharge?

Sent from D.C.

[Audi 0000]

I'd start with a proper evac and recharge. Those generic can kits cant be accurate, every car holds a very specific amount of refrigerant. Being overcharged or undercharged will cause issues. I am not sure what compressor type the 330 has, but see if the compressor clutch is engaged when its blowing warm. If it isnt check for power to the compressor.

[mLuMaN83]

Sorry about the newbism on my part, I dont know anything about AC systems so I'm blind right now. I have been noticing a noise from under my car at idle. Sounds similar to this..





Here is a video of my car I took a few days ago of the same noise.





I think it may be the actual compressor. Anybody know anything else about this? Do I need to whole new compressor? The AC issues along with this noise MUST be related.