[Vwdiesel] AC in 91 Jetta

[mikitka]

Well I added a can of 134a, well almost a full 12oz can.  I'm being over
cautious I guess but the air coming out of the vent is cool. I checked it
with my IR thermometer and with the AC on Max it was down to 52 degree's F
at the center vent.  How long does it take to empty a can?  It seemed like
forever to get it to the point that it is at now.  Should I try to get the
rest of the can or is 51 degrees it. The outside temp is at 88 with about
89% humidity.  I know from reading on line that the target temp is 40
degrees F but this from what I can tell is the original system which has
227k miles on it.  

 

Nick