90 20V Quattro 1989 model Aircon

[Kent McLean]

whitehill wrote:
> Thanks Kent
> I am convincing myself that it needs a recharge.
> What I don't know yet is whether the unit has already been modified to 
> accept the R-134a. I know the previous owner so I will ask him

YOu should be able to tell by the fittings (Shraeder valve like things). 
They are similar, but one won't work with the other. You should be able 
to Google the fittings; include the word "conversion", as I think you 
can screw an R-134a adatper onto the R-12 valve.

That's about as much as I know. Good luck.

-- 
Kent