I posted a question to the list a couple of days ago asking how to remove
the nut that joins the upper control arm to the steering knuckle so I could
remove the caliper and get at my wheel bearings.  I talked to a local
mechanic who does a lot of VW work (he had 15 on his lot or in the air when
I spoke to him) and his advice is to take off the brake line.  The nut is a
bear to get at.  "Besides," he said, "You can't change the fluid too often."