AC running not so cold

[Max Hoepli]

 As far as I know the accumulator drier has to be changed out, check for
leaks - more parts may to have to be changed out. In my case the mechanic
made the high presure line out of a copper tube and replaced the original Al
line. Much better with Cu, since will not be prone to oxidation damage as
Al.


Max


----- Original Message ----- 
From: "Kent McLean" <kentmclean at comcast.net>
To: "quattro" <quattro at audifans.com>; <V6-12v at audifans.com>
Sent: 27, May 2007 10:36
Subject: AC running not so cold


> When I bought my '94 100 S Avant, the AC worked fine. It wasn't ice cold,
> but it was cold. Now, 3 years on, it doesn't blow cold, and summer is
here.
> My new-to-me '91 200 20V Avant, on the other hand, didn't blow cold or
> even cool when I got it. So...
>
> - Is there a good on-line tutorial for how automotive AC works?
> - Does my '94 have a low-pressure valve for adding R134a? (I know
>   some Audis only have a high-pressure valve.)
> - I don't know that the '91 has been converted to R134a. Will a
>   cheap R134a conversion kit let me use R134a? Or do I need to
>   change things (hoses, compressor, etc.)?
>
> The '94 is a non-automatic climate control. Yup, it has 3 big
> old-fashioned knobs :) So debugging its system using the CC
> won't work there.
>
> Thanks,
>
> -- 
> Kent McLean
> '91 200 TQA #1, for sale
> '91 200 TQA #2, no name yet
> '94 100 S Avant, "Moody"
> '89 200 TQ, "Bad Puppy", up in smoke
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