Subject: Best R12 to R134a Conversion Kit for Audi

[Brian Roth]

I recently used a product called Duracool. I just added it to my R12 system
all by itself. It worked great during our hot spell a month ago but we have
not needed the AC since. I paid $42 for a case of 12 cans and put it in
myself.

> ----------
> From: 	Christopher Ritchie
> Sent: 	Monday, April 22, 2002 11:19 AM
> To: 	quattro at audifans.com
> Cc: 	cgharibo at usa.net
> Subject: 	Subject: Best R12 to R134a Conversion Kit for Audi
>
> >Has anyone documented the conversion process for a '91 Coupe or
> >the like?
>
> >And, what is the best conversion kit out there?
> **************************************************
>
> There is an Audi Technical Service Bulletin (TSB) on converting Audi R-12
> systems to R-134a ones.
>
> There is no kit.  You need new R-134a compatible:
>
> 1. receiver/drier
> 2. green "O"-rings
> 3. expansion valve
> 4. oil
> 5. high and low side fittings
>
> You may need:
> 6. new hoses
> 7. rebuilt/resealed compressor
>
> Do not use the Interdynamics kits.  Make sure you get as much of the old
> R-12 oil out as possible.  Make sure you put a good healthy vacuum on the
> system for a long time.  The reason for these last items in this paragraph
> is that if you don't do these things, the system will rot from the inside
> out.  If you don't do these things, acid forms in the system which tends
> to
> attack the thin walls of the evaporator and condenser.  These 2 itms are
> very expensive.
>
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