HVAC question about 1995 A6

[Robert Rossato]

Technically there is no low pressure fill port.  Audi wants it filled
from the high pressure side.  The one on the compressor is also high
pressure.  However, there is a schrader (I think) valve under the low
pressure switch so that you can replace the switch without losing the
charge.  According to the Bentley manual it is on the right side of the
plenum area.  If you have an adapter for that you might be able to give
that a try.  

Bob

> -----Original Message-----
> From: quattro-bounces at audifans.com 
> [mailto:quattro-bounces at audifans.com] On Behalf Of Beatty, Robert
> Sent: Friday, July 14, 2006 1:30 PM
> To: 'quattro at audifans.com'
> Subject: HVAC question about 1995 A6
> 
> 
> 
> Guys,
> 
> Want to put a can of refridgerant into my A6 as the 
> compressor is cycling on
> and off so its definately low.  Need to know where the low 
> pressure port is
> on the A6.  I found one on the front at the condenser, but 
> its fitting was
> smaller than what I have for an adaptor.  So I am thinking 
> that was the high
> pressure side.  Is the low pressure side on the compressor?  
> 
> Thanks!
> 
> Rob
> 
> 1995 A6 Quattro Sedan