You don't say what transmission you have, but if it's a manual one, could be
clutch hydraulics leaking.
And yes....brake fluid can go into the booster.  Could be a few inches deep
in there.
Real wheel cylinders are usually the first to leak...
And they can leak slowly enough that it doesn't show up at bf at the braking
plate, etc.
Scott
www.turbovans.com 

-----Original Message-----
From: Vanagon Mailing List [mailto:vanagon@gerry.vanagon.com] On Behalf Of
Chris S.
Sent: Saturday, October 27, 2007 6:13 PM
To: vanagon@GERRY.VANAGON.COM
Subject: Case of the disappearing brake fluid

Alrighty folks.. my master cylinder keeps going low but I see no signs of
leaks anywhere.  Is leaking into the brake booster?  The brakes seem fine
otherwise.

Thanks,

Chris S.

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