[V6-12v] 1995 Audi 90 Refrigerant Charging

[Tom Christiansen]

Hi,

>I have located a Schrader valve at the compressor and I am wondering
>whether this is a low pressure connection and if the system can be
>charged via this valve.

I do believe it is a low pressure side valve. According to Bentley 
it's purpose in life is to allow you to drain the oil from the 
compressor and refill with oil. I don't know if you can use it for charging.


Tom