[s-cars] Losing hydraulic oil from power steering pump

[Bill de Alva]

Hello,
 
I have a slow leak of hydraulic oil from the power steering / brake boost pump on my '95 S6.  At first, I thought it was the fitting at the top of the pump (see photo: http://volcano.photobucket.com/albums/v11/tachyon/Audi/Dscn2273.jpg).  I have tightened that fitting as much as I dare and the leak persists.  There is a plug in the top of the pump with a recessed cross (see the photo again) that I assume works with a special tool for installation and removal.  I tried tightening this plug by grinding a cold chisel to fit one leg of the cross "+" and was not able to budge it.  I'm about 300 miles from the nearest Audi dealer.  I would like to find a way to stop this leak without making the drive.
 
I have another question relating to the same vehicle.  There is a device that I presume to be a valve body that sits on top of the turbo (the waste gate valve perhaps, here's another photo... http://volcano.photobucket.com/albums/v11/tachyon/Audi/Dscn2275.jpg).  There is an open barbed fitting on the back side of this device that I assume should have a hose connected to it.  The car runs smooth and strong and as far as I know this barbed fitting has been without a connected hose since I bought the car several years ago.  Is this anything to be concerned about?
 
Any insight on either of these problems would be greatly appreciated.
 
Thanks,
Bill de Alva


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