Ac Sux, Help! - BMW Forum - BimmerWerkz.com
3-Series (E36) Chat relating to the BMW 3-Series from 1992-1999. Autodoodad Specific models include: BMW 316i, BMW 318i, BMW 318iS/ti, BMW 320, BMW 323, BMW 320, BMW 324, BMW 325, BMW 328.

 
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#1 (permalink) Old 07-29-2005, 04:00 PM
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I have a 95 325is, and I live in Phoenix. Man does my AC suck, as a matter of fact all the e36ís Iíve rode in have crappy ACís. This last weekend I recharged my freon and it didnít help at all. On full blast the fan still seems a little weak, so I plan on changing my cabin microfilter. Still, I expect my AC will suck. The AC does indeed work, but it just doesnít compare to other makes ACís. At this point I want to know if anybody has upgraded their AC, as opposed to merely trying to fix it. Iím sure in some states these stock e36 ACís cut it but NOT IN PHOENIX, HELP!
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#2 (permalink) Old 07-29-2005, 04:59 PM
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try taking it into a shop and have them charge it up and maybe that will work my sucks to but i think its broken
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#3 (permalink) Old 07-29-2005, 05:03 PM
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Changing the microfilter makes a world of difference. Hopefully it's enough to do the job.

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#4 (permalink) Old 07-29-2005, 05:28 PM
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^^ Agree and check the resistor for the blower, there's a write-up about it. I'll look for it later and post if I find.
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#5 (permalink) Old 07-29-2005, 05:52 PM
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I sure hope the mico filter does the trick. Other makes have such cold air in comparison to e36's, and it's over 115 everday here. I'm basically under the impresion that bmw tested their AC's in Germany instead of somewhere where it actually gets hot. I love my car so much if I could solve this issue I really wouldn't have much to complain about.
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#6 (permalink) Old 07-29-2005, 06:59 PM
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Do you know when the filter was replaced last? It is SUPPOSED to be changed every 10,000 miles. I'm hoping the filter change will make some difference for you.

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#7 (permalink) Old 07-29-2005, 07:18 PM
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wow, i've never changed it! If it is supposed to be changed every 10,000 I would suspect this is pretty easy. Does anybody know of a good DIY for this?
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#8 (permalink) Old 07-29-2005, 07:22 PM
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I changed mine and it DID make a difference. I do agree that the e36 a/c sucks! My old '89 Accord has better a/c. I think the problem is the dam blower has to be on 2 to even start to cool off. Turn it up to 3 and the air isn't nearly as cold! Weak!!! n
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#9 (permalink) Old 07-29-2005, 08:09 PM
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green325is if you did it can you do a little diy write up on it
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#10 (permalink) Old 07-30-2005, 04:08 AM
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some existing write-ups...

http://www.logun.org/microfilter.htm

http://www.unofficialbmw.com/repair_...crofilter.html

http://www.bimmerwerkz.com/forum/ind...?showtopic=629

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#11 (permalink) Old 07-30-2005, 08:39 PM
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Quote:
Originally posted by bimmer3214@Jul 29 2005, 07:09 PM
green325is if you did it can you do a little diy write up on it
[snapback]366127[/snapback]
Sorry I'm not so much mechinically inclined. Just had it done during Inspection II and then recently during Oilservice.
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#12 (permalink) Old 08-01-2005, 12:40 AM
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Quote:
Originally posted by toast_mcmann@Jul 29 2005, 04:00 PM
I have a 95 325is, and I live in Phoenix. Man does my AC suck, as a matter of fact all the e36ís Iíve rode in have crappy ACís. This last weekend I recharged my freon and it didnít help at all. On full blast the fan still seems a little weak, so I plan on changing my cabin microfilter. Still, I expect my AC will suck. The AC does indeed work, but it just doesnít compare to other makes ACís. At this point I want to know if anybody has upgraded their AC, as opposed to merely trying to fix it. Iím sure in some states these stock e36 ACís cut it but NOT IN PHOENIX, HELP!
[snapback]366071[/snapback]
You should also check your auxilary fan, make sure it runs on low speed when the ac compressor is running, this fan cool down the ac radiator that is in front of the engine radiator. This fan serves to cool down the ac radiator when its running, will run on low speed, and if something goes worng with your cooling it will kick in in high speed to cool down your car, if the mechanical fan fails.

Not only replace your cabin filter, check your electrical fan, resistor, fuses and relays, make sure contacts are clean, special the one under the bumper that is the plug for the fan, that plug tends to suffer a lot of water damage, since it sits too low.

And also, on the ac dryer, is a little round silver looking can with hoses going to it, this is where the freon is dryed and stored on the system, it sits under the windshild washer fluid, there is a pressure swicht that sits on top of the can, is this swicht fails, the ac system will work poorly, since the system thinks the ac is working under high or low pressure, to fix this pull the plugs out and clean the contacts, these plugs get dirty easily and will provoke malfunctions. But keep in mind that if the siwcht itself is broken, it will need replacement, meaning that oyu will have to evacuate the freon on a professional machine and then replace the switch, not that complicated, just needs the shop to remove and then fill your freon, hope this helps;.

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#13 (permalink) Old 08-01-2005, 12:54 AM
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I had the same problem. I charged my ac and my the next week it was warm agian. I had to replace my ac condensor...which is in front of the radiator. It was easy it fix, the hardest part was finding out how to get to all the bolts that hold it on. I even had to take the protector thing off of the bottom of my bumper.

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#14 (permalink) Old 08-11-2005, 05:50 PM
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does your control panel have automatic reciculating mode. (two green light s on the recirc buttom). if so push it until the right side led is lit up this is manual recirc. when on automatic it only recirculates the air when a bad smell is detected by the "bad smell sensor on your fan shroud"
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