[Vwdiesel] AC compressor clutch

[knealeski at sbcglobal.net]

Is it possible to replace the magnetic clutch on the A/C compressor on a 1995 Jetta TD?  The clutch isn't engaging.  
 
I'd like to avoid going through all the evac/flush/replace expensive drier/etc. in order to replace the whole compressor because the clutch isn't functioning.
 
I've replaced just the clutch without opening the system on an Audi.