I am tracking like a freight train on the idea of replacing the drier and the receiver and even the expansion valve and the seals. My issue is past that. After opening the system and vacuuming it down and refiling the freon, I am lost. My 16v is switched to R134 and until this week has always been ice cold. It has been 95 -97 each day and if i let the car idle or have to stop for an exrtended period of time, the a/c goes hot and stays hot until I stop the engine. Then after a short shut down, even 5 minutes, I restart the car and the ac is typically ice cold again. ANyone know what my issue might be. I am working on getting the new drier, reciever and seals and valves, but I dont know what is causing the hot ac on idle or car not moving.

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Christopher Henkel
1990 190E 2.6 - Arctic white SOLD
1986 190E-16v - Blauswartze
1993 300CE - SOLD
2003 W208 CLK 320 Cabriolet - Magma Red