R-134a conversion: a success!

[amalventano1@comcast.net (Allyn)]

dirk, it sounds to me like they have their numbers backwards. there is no such thing as 413, but if
you rearrange 413 you get 134. 134 does all that same stuff (can mix with r12, is safe on seals
(with the proper oil), etc).
Al

Allyn Malventano, ETC(SS), USN
87 Rieger GTO Scirocco 16v (daily driver, 180k, rocco #6) ** 134a
86 Kamei Twin 16V Turbo Scirocco GTX ('it has begun', rocco #7) ** no ac
86.5 Occo 16v Trailer (dotting 'i's across the country, rocco #8) ** dont stinkin matter :)
87 Jetta 8v Wolfsburg 2dr (daily driver, 260k, 0 rattles, original clutch, driveshafts, wheels :) **
134a

----- 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 7:52 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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