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X5 E53 (1999 - 2006)
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  #1  
Old 07-11-2012, 03:07 PM
Mike Gardner Mike Gardner is offline
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Location: Charleston, SC
 
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Mein Auto: '01 X5 3.0 '00 323CI 540i
Blew My A/C? Blew Pressure

My wife was complaining about the A/C in my 01 X5 not being cold enough. I topped off the freon in the system last year and I thought it worked fine, but to please my wife I got some more freon and charged my system. Unfortunately I wasn't paying attention and probably blew the system. As I was charging I heard a loud woosh and cloud of what appears to have been freon exiting the system somehwhere down near the compressor. Someone please tell me there is an overpressure release valve or something similar that is easy to reset/replace.

Failing this - please tell me the real answer if you know it. I will be taking it to an A/C specialist tomorrow but am afraid of hearing I have damaged the system.

Any suggestions/help is appreciated.
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  #2  
Old 04-29-2013, 04:27 PM
Spring20 Spring20 is offline
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Location: New jersey
 
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Posts: 81
Mein Auto: 2006 BMW X5
I dont do cars but i do hvac. Overcharging a system can slug out the compressor. Overcharging can make it blow warm too.
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  #3  
Old 04-30-2013, 01:14 AM
flyace20 flyace20 is offline
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Location: Australia
 
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Mein Auto: 2002 X5 4.4
Having an overpressure release valve would make good sense. I hope you haven't done too much damage. I assume your compressor is working fine then?
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  #4  
Old 04-30-2013, 01:23 AM
Vman68 Vman68 is offline
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Location: Minnesota
 
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Mein Auto: 2013 328xi Sedan
Re: Blew My A/C? Blew Pressure

Some compressors have a pressure relief valve, so you may be okay. If you are going to do the DIY thing at least use something like this

http://idqusa.com/product/401gmcsca/?viewAs=mobile

Using a low side guage should keep you from over charging the system.

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Last edited by Vman68; 04-30-2013 at 01:24 AM.
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