R-134a conversion: a success!

[scirocco_88_16v@hotmail.com (Brian Wagner)]

I have never heard of it, interesting.

Brian
----- Original Message -----
From: "Dirk Schneider" <SCIROCCO2@t-online.de>
To: "T. Reed" <treed2@u.washington.edu>; <scirocco-l@scirocco.org>
Sent: Monday, July 22, 2002 4:52 PM
Subject: Re: R-134a conversion: a success!


> Hello,
>
> This spring I also had to refill the A/C of my Scirocco
> which was still equipped with R12.
>
> The time I drove to the ATU-repairshop in April, they told me that
> R12 is forbidden since a few years here in Germany, and for a swap to
> the legal R134, they would have to exchange all the seals, put in a new
dryer,
> a new condensator and they would have to remove the compressor for
> making it completly empty.
> Total estimated costs : $450
>
> Then I went to the BOSCH service and they told me that this is nonsense,
> all I need is R413, a new dryer, new seals, a valve-adapter and a
contrast-fluid
> to spot possible leaks with an UV lamp.
> They told me that they will use R413a ( and NOT R134a )
> because R413a can be mixed with remaining R12 without dammaging anything.
> They also told me that R413 was specially designed to be used in older AC
systems
> that are contaminated with R12.
>
> effective costs at the BOSCH service, after I had my car upgraded with
R413,
> a new dryer, new valves, and leak checkup :
> $199
>
> and the A/C works good again !!
>
>
> It seems like some repair shops here don't tell their customers about R413
to
> do the pricey R134a thing instead ?!
>
>
> is R413 also available in the States ?
>
>
> friendly Greetings !
> Dirk
>
> CORRADO G60 www.Scirocco2.de/my_corrado_1.jpg
> Scirocco 16V GT II '92 darkgreen-pearl  www.GT-2.de/GT2.htm
> Scirocco 16V GTX "CABRIOLET" www.Scirocco2.de/hornstein.htm
>
> http://www.Scirocco2.de
>
>
> ----- Original Message -----
> From: "T. Reed" <treed2@u.washington.edu>
> To: <scirocco-l@scirocco.org>
> Sent: Sunday, July 21, 2002 5:21 AM
> Subject: R-134a conversion: a success!
>
>
> Just thought I'd flaunt my newly working A/C.. charged the system
> yesterday and just tested it out in the daytime this afternoon. It cools
> well.. I don't have a thermometer to check my vent temps handy but I'll
> probably check them eventually. What I can say is that driving around last
> night with 60 degree temps outside, my windows were all fogged up and my
> ears got numb and turned red. Chilly. Today it got almost as cold but it
> took longer (I had it on recirculate). I've never had a car with working
> A/C before so this is fun stuff.
>
> Basically, I took the middle road for the conversion - I replaced the
> receiver/drier ($22), pulled a vacuum for 20 minutes ($12 Harbor Freight
> compressed air driven venturi pump - 4.2 SCFM @ 90 psi) and used a cheap
> interdynamics kit ($35 including 2 cans with r134a + oil + leak sealer +
> o-ring treatment, a can tap, hose, fittings, label and instructions) to
> charge with 24 oz refrigerant and 6 oz ester oil. I didn't drain the oil
> or change the o-rings, but it all seems to be working fine so far. We'll
> see..
>
> I'm liking this whole cold-air-from-all-four-vents thing, and it seems to
> get cold a lot quicker than the heater gets hot .. something like 30
> seconds before it starts blowing cold whereas the heater usually takes 60
> - 100 seconds. It's pretty neat under the hood too because the hoses for
> the low side frost over with ice while the high side gets almost hot
> enough to burn you.
>
> Anyway, just thought I'd share my story since there have been some posts
> about converting in the past few weeks.
>
> -Toby
>
> --
> '87 16v
>
>
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