Anyone had problems with the A/C controls on the ML? I have a 98, and my A/C control doesnt seem to want to turn on the compressor. If i fiddle with it long enough, turning it from the blue to red....after several minutes of playing with it...the compressor will kick on, and begin functioning correctly. The freon level is good, no leaks, and the compressor works flawlessly, once it is activated...Can anyone please help? Thanks

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1994 S320
131K miles

1998 ML 320
126K miles

1994 Blue C220
122K miles

Im going to Grad School @ the University of Iowa
Go Hawkeyes!!!