Josh13

Recently m 2009 c-300 with 98k miles, made a whining noise while driving and then presented me with no cold air whatsoever. Figured at first it was a low refrigerant problem, but the low pressure valve doesn't seem to draw in any additional refrigerant. It doesn't sound like the clutch is engaging either when I hit the ac/on button. Any insight as to what the problem may be?

superangrypenguin

Please don't double post.