Attempt at Recharging A/C with R134a on 1986 Mercedes 300e 

Recharged the A/C system on a 1986 Mercedes 300e.
This system was Converted from R12 to R134a by the previous owner. Did Not Blow Cold when I got the car. On July 3rd I filled it. On July 14th (Time of Posting) it is still working. The Vintage Meat Thermometer is Still Accurate...