Anyone know what could cause the ac to have mediocre performance while idling at 500-600 rpm with high speed fans on, but performance increases when rpm are at 2000 while still idling with high speed fans on? It seems like I've been at this issue for a while with my 201. The compressor is a brand new Denso. No clogged condenser, no leaks. A/c actually preforms amazing, but if I sit idle for a while the vent temp will go from ice cold (40°F) to semi cold (~60°F). I am also running 4 electric fans, stock auxiliary fans and two 10 inch spal pullers, which I will eventually convert to one large puller.

__________________

1990 190E 3.0L