Karl,

Mine has been slowly leaking at the bottom hose coming out of the
reservoir for about 2 years now.  Not enough to ever have to add fluid
tho.  Just enough so that you can see it on the hose.  Actually, bout a
year and a half ago it had started to get worse (would see a drop under
the bumper from time to time), so I asked my mechanic to fix it.  He
just clipped some off the hose and put the same hose back on, saying it
was long enough, just worn at the edge where it was clamped onto the
reservoir.  Guess he was in essence right, cause although its started to
get more of a 'leak' to it again, the fluid level still hasn't needed me
to top it off any.

If your leak is there, the hose itself has a darker coloration from the
oil.  If the fluid level remains fine, I wouldn't worry too much about
it.  But, others here may (and probably do) know more.

Good luck,
Tonya
87 Vanagon GL Wolfs
74 S. Beetle