[urq] Oil Pressure Sender Location

[Keith Lloyd]

Maurits
The second sender can indeed go where the allen head plug is located. Both 
drillings are in to the same oil gallery.
Regards
Keith



----- Original Message ----- 
From: "Maurits Jonkergouw" <urquattro at moregraphics.nl>
To: "Audifans" <urq at audifans.com>
Sent: Monday, March 29, 2010 11:15 PM
Subject: [urq] Oil Pressure Sender Location


> Please take a look at this picture and tell me where the oil presure 
> sender(s) should go. Currently the empty hole (just below the brass alan 
> key plug) has the large 2-pin gauge with just one wire attached to 
> terminal "G".
>
> http://www.moregraphics.nl/quattro/images/sender.jpg
>
> The temperature sender in the nose of the oil pump is located (and works 
> fine), but where does that second pressure sender go were Tony talks 
> about?, in the plugged hole perhaps?
>
> Thanks again.
>
>  Maurits,
>
>  Since 1985 Audi has used a 2 switch system with a oil pressure warning 
> relay (p/n 433919082).  The large 2 pin sensor is one of these switches 
> (1.8 bar). The pins are marked "G" and "WK"  The G terminal runs the oil 
> pressure gauge.  The WK terminal is the 1.8 bar pressure switch. If you 
> remove the sensor, you'll see the pressure spec marked on the base just 
> above the threads.   There is also a standard 0.3 bar switch (black) that 
> is also mounted on the same side of the engine block.  There two are 
> connected to the relay which buzzes and lights the oil light if it senses 
> something wrong.
>
>  There is a second type of 2 pin sensor which is a gauge and 0.3 bar 
> switch but is used only on 1981 4000 and coupe GT cars.
>
>  HTH,
>
>  Tony
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