Question about BMW 323

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The a/c on my 2000 bmw 323i blows warm air when I stop at a redlight? It works fine when the car is moving..blowing cool air. Help?

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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.

Posted on Jul 23, 2009

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Posted on Jan 02, 2017

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1999 bmw 323i heater wont work, replaced thermostat,waterpump,heater control valve,radiator,heater core sensor, help! live in Wyoming!!!


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I suggest you get one of those manuals people get nowadays to do it yourself.. My nephew use it to repair my car and it's totally repaired now. Here's the website he bought it from. reliable-store.com
I have attached link for your car model as well

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Heater temp on high only bows luke warm air after driving. A/C works just fine.Plenty of cold air from it


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Jan 27, 2016 | 2000 Chrysler 300M

1 Answer

I have a 1999 323i BMW. The AC doesnt blow cold (on cool days it blows cool temperature but not common A/C Cold Air, Hot Days it blows Warm/Hot Air). The heater blows warm air but definitely not common...


First things first.....You must have the air conditioning system hooked up to an a/c system machine and then checked for leaks and also read low and high side pressures. If there are leaks then low Freon (R134a) content and low refrigerant oil can cause the a/c system to not engage the a/c compressor which basically means you will not have proper defrost functionality nor regular air conditioning. Most shops, when working with your air conditioning, will install air conditioning dye to assist them in locating leaks and is the first step in diagnosing all a/c systems. Post the findings after thw

Jan 21, 2018 | 1999 BMW 323 Series

1 Answer

Air condition kicking on and off


HI, i have a 2000 323i and it sounds like we have a similar problem. my a/c works fine when the blower is going but some times it goes out of control and it's almost like it has a mind of it's own. and sometimes i turn off the car and the blower keeps blowing air even if the car is completely off and the keys are out.
I'm replacing the blower resistor to fix that. i was at the delaer today and spoke to a mechanic and its a common problem on the final stage blower resistor. you have to reach the blower to replace it but its easyer that it sounds.

Good luck

Jul 07, 2009 | 1999 BMW 323 Series

1 Answer

1999 323i air con is freezing then becomes hot and humid


sounds like there is not enough r134 coolant in the system and when your slowing down the compressor stops turning. Have someone add some coolant and you should be ok.

Jul 01, 2009 | 1999 BMW 323 Series

1 Answer

A/C only works while I am driving


This is a characteristic of R-134a. The cooling efficiency at idle has improved slightly over the years with design changes to the hardware but performance still lags that of R-12.

Due to small size radiators and thus reduced coolant capacity in use in nearly all vehicles today, most manufacturers program the pcm to turn the cooling fan on when it sees an a/c "on" signal. This is to prevent overheating of your vehicle as well as keep air moving across the a/c condenser to improve cooling efficiency as much as possible.

While definitely frustrating, the symptoms you describe are not unusual.

Jun 23, 2009 | 1999 Volvo V70

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2002 bmw 3 series intermittent ac


Sounds like a compressor problem.

Jun 05, 2009 | 2001 BMW 325

1 Answer

323i a/c blows warm air when standing still.


check to see if cooling fans running to cool the condensor .

May 03, 2009 | 1999 BMW 323 Series

1 Answer

Ac blows cool only on drivers side of 2000 bmw 323i"


sounds like you have a low refrigerant charge. your best bet is to recovery the refrigerant in the system with an a/c recovery machine and see if you have the proper fill level. most likely the system is very low.

Apr 26, 2009 | 2000 BMW 3 Series

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Bmw heating/climate not working


you might check to see if theres air coming out at the floor level or the windshield level..if so you have a stuck regulator for the air control

Jul 12, 2008 | 1999 BMW 323 Series

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