I recently purchased a 1994 E320 Wagon. Everything is great on the car except the AC. The compressor is turning, but it is not blowing cold. There is pressure on the line, but I have not had it to a shop to test what kind of pressure it is reading. I have been told that it could be the expansion valve. I have searced this forum and haven't found exactly what my car is doing. The AC was serviced (according to the decal under the hood) in '04. It is running 134a refrigerant. The AC fan in the front isn't running when the AC is on either. Any help would be greatly appreciated.