I HAVE A 1994 MERCEDES S320 , WHEN I TURN THE AIR CONDITIONER ON THE AUXILLARY FANS WILL NOT COME ON.I,VE CHECKED THE FUSE, I LOOKED AT THE RELAY SWITCH PULLED IT OUT AND PUT IT BACK IN HOPING TO START IT NO SUCESS.ALSO I CHANGED THE RELAY SWITCH ABOUT SIX MONTHS AGO, COULD THAT BE THE PROBLEM, ANY SUGGESTIONS.</P>