[s-cars] a/c capacity...recharge

[Pasqualoni, James E]

Or, buy it off ebay-this guy doesn't seem concerned with selling to an
authorized shop:

http://cgi.ebay.com/ebaymotors/DuPont-R12-R-12-4-Cans-Car-Freon-Refriger
ant-Oil-Charge_W0QQcmdZViewItemQQ_trksidZp3913Q2ec50Q2em22Q2el1101QQhash
Zitem140143479983QQitemZ140143479983 

-----Original Message-----
From: s-car-list-bounces at audifans.com
[mailto:s-car-list-bounces at audifans.com] On Behalf Of Jerry Scott
Sent: Thursday, August 02, 2007 4:29 PM
To: James C. Mairs; s-car-list
Subject: Re: [s-cars] a/c capacity...recharge

Jim
You may still be able to get R12 in small cans in Mexico as I did
several years ago.  I bought 5 cans and a hose kit that appears to fit
the Schrader type valve on the compressor.  I have never used the kit,
but I know that this is a low pressure port for the system.

A friend just did a home refill on a 134a system in a Viper, that was
completely empty.  It took 3 cans to get the duct temperature down to 40
F.  So, I am guessing that the Audi could probably be refilled with
around 3 cans of R12.
Jerry

James C. Mairs wrote:

>Greetings Tom,
>
>Excellent information, I have been following the AC threads for some 
>time now, trying to determine if anyone actually has followed through 
>with a recharge without going to the dealer.  Lots of information but 
>not a lot of BTDT with answers...
>
>Appreciate the info, side note the charge in the system was working 
>fine before I tore the entire front end out and apart for a head 
>rebuild, coupled with a lot of while I am in there fixes and
replacements.
>
>AC in the car was working before breaking open the system, however I 
>wish I had gone through the diagnostics to see how well it was working 
>(HVAC codes and such) before taking it apart.  Alas a compromised head 
>was leading me to not wanting to run the car for long periods of time.
>
>AC system was sealed back up after replacement of the dryer and new 
>Variable Orifice Valve.  All lines separated were put back with new 
>seals, and of all the lines only 1 was I able to flush completely 
>before reassembly, mostly due to being to far into the project to want
to spend more time and money.
>The others were just disconnected and compressed air to blow out 
>whatever black sludge wanted to go flying out from whatever end wasn't 
>pointed downward.
>
>Hope some other folks post up information if they have completed this 
>as a DIY job.  Especially the fittings and procedure when not having 
>the correct VAG tools...
>
>Thanks again Tom, if anyone else has any links or key words of wisdom 
>to offer I am more than all ears.  Or if you happen to have any good 
>archive thread searches I can use, mostly looking for BTDT's or things 
>to watch out for, it would be appreciated.
>
>Thanks,
>
>
>-Jim
>
>
>-----Original Message-----
>From: Tom Green [mailto:trgreen at comcast.net]
>Sent: Thursday, August 02, 2007 11:14 AM
>To: s-car-list; jmairs at cetaq-americas.com
>Subject: Re:[s-cars] a/c capacity...recharge
>
>Jim,
>
>Capacity is 21.2 to 23 oz refrigerant and 8.5 oz of Pag oil.  The high 
>presssure port on the passenger side of the condenser is the only port 
>used and evacuated and charged with engine off.  You can only measure 
>the oil charge if you drain the oil (at the condenser) and change the 
>accumulator since an unknown amount collects there.  The real trick is 
>accurately measuring the refrigerant charge.
>
>If the system is in good condition with all fans and flaps working 
>correctly in recirculate mode, the result should be about 40 F duct 
>temperature at
>95 F ambient.
>
>The system base pressure is 113.1 psi at 95 F (engine off) and 290 psi 
>operating pressure with a full charge.
>
>Tom
>
>-----Original Message-----
>  
>
>>Date: Wed, 1 Aug 2007 18:24:47 -0400
>>From: "James C. Mairs" <jmairs at cetaq-americas.com>
>>Subject: [s-cars] AC Capacity...Re-Charge
>>To: "'s-car-list'" <s-car-list at audifans.com>
>>Message-ID: <015801c7d48a$c4c727b0$0b03a8c0 at CeTaQJCM>
>>Content-Type: text/plain;	charset="us-ascii"
>>
>>Greetings all,
>>
>>Bentley Manuals are in route via shipping, so I can not confirm the 
>>following, or even if its listed.
>>
>>Does anyone know the capacity/recharge pressure amount for a 93 //S4?
>>
>>I have been following the threads here as much as possible on the 
>>whole AC snow flake conversation, as well as a quick search in the 
>>archives.
>>
>>I have a HVAC friend who is willing to run a vacuum test on my system 
>>before recharging it.  He doesn't seem to think it will be an issue, 
>>but informed me I should confirm what amount of R134 should be in the 
>>system.
>>
>>He has a large amount of fittings/adapters and such, its possible we 
>>may even just plumb in a connector with a generic fitting to make this

>>easier in the future.  If/when I come up with a solution I will be 
>>sure to post up my findings... However in the mean time sitting in 93 
>>degree heat in a black on black S4... I have to ask...
>>
>>
>>Anyone care to toss out a number?
>>
>>
>>
>>-Jim
>>    
>>
>
>
>
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>  
>
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