[s-cars] resolved, was Re: Found source of oil leak on S6 Avant

[Peter Schulz]

Tom, Dace, JC....

Thanks for the tips & advice.

I removed and replaced the sensor last night - it was a bit challenging to get access, but I made it easier by moving the upper throttle body-IC hose out of the way, then using a deep 24mm socket wrench and about 12 inch 3/8 extension.

Interesting how the S6 has a different sender than the S4 AAN.

The most challenging part was reinstalling the female spade connector with my large hands.

Replacing the sensor stopped the leak.

I'll be purchasing another to have on standby for my other S6.

-Peter


On Sep 28, 2011, at 7:53 PM, Tom Green wrote:

> 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) 
>> *****
> 
>