[s-cars] Found source of oil leak on S6 Avant

[Tom Green]

Here is a link to the information you need, Peter.  The first is the  
engine bay map and the second is a link in the list below the diagram:

http://forums.quattroworld.com/s4s6/msgs/22625.phtml
http://forums.quattroworld.com/s4s6/msgs/96161.phtml

Since traffic is slow here, following QW forums for this vehicle is a  
good way to keep current on issues.  The 1.4 bar black sender for the  
oil light is available in the aftermarket and is a recommended item to  
have on hand.  Yes, they do leak that much, and it is a big deal.  The  
insulator center of the switch often will blow totally out and emit a  
good sized stream of engine
oil.  If you are on the road, the engine will evacuate all the oil  
before the low pressure light can come on, then the driver has to  
react and shut down the engine.  Plan on new main and rod bearings at  
a minimum if this happens.  So, never let a small leak go, because it  
has the potential to become a very large one.

Be sure to skip down to the S6 diagram where there is only the switch  
for the idiot light and no pressure gauge sender.  So you only have  
one, and it is "easily" reached to change it.

Tom '95 S6
          '95.5 S6 avant
Knoxville, TN


On Sep 28, 2011, at 6:48 AM, Peter Schulz <p.schulz at verizon.net>  wrote:
>
> S-listers:
>
> Finally found the source(s) of the oil leaks on dewife's UrS Avant.
> Looks like its coming from one of the oil pressure sensors on the  
> driver's side.
>
> Anyone have experience in replacing the sensors with the engine in  
> the car and care to share advice.?
>
> I can see one of the sensors from above looking across the hydraulic  
> pump from the driver's side - but not the pressure sensor/gauge.
>
>
> -Peter Schulz
> Chelmsford Ma, USA
> http://www.naaclub.org/
>
> 1995.5 S6 Avant Emerald/Ecru
> 1995.5 S6 Avant Silver/Platinum
> 1991 90Q 20v Q Red
> 1991 90Q 20v Indigo
> 1991 CQ silver  (eS2 recipient)
> *****