[urq] Adding Gauges to Quattro

[Patrick Carlier]

Oil temp :
Behind the cranckshaft pulley you'll find the oil pump
On the lower right you'll see a large nut .
That is what holds the oil pressure regulator .
Get part nr 035191521 , that is thesame nut , but with an integrated
oil temperature sender .
That sensor  can also be found on the coupe GT , and the later style coupe
And if I'm not mistaking , some of the 200's ( 5K ) also came with the 
sensor .
Carefull , when you remove the nut , a spring and a valve will fall out .

Oil Pressure :
On the left side of the engine block there will be one or two oil pressure
contacts . These are switches , not sensors .
>From memory , you need to replace the brown switch with an oil pressure 
sensor .
Usually that sensor comes with the gauge .
The sensor will have an "S" and a "G" on it .
Connect the witre from the removed switch to the S .
This will control your oil pressure warning light and buzzer if you have one 
.
Connect the "G" to the oil pressure gauge .
If yoiu don't hve a sensor with the gauge, get one from a coupe GT or later 
style coupe .
Thread in the engine  block is metric , M10*1.00

Water temp .
You'll have to add a sensor  because all the others are used , and you
can't share a sensor using  a mechanical gauge .
Best place to do this is  the water outlet on the cilinder head that goes to 
the radiator .
Most of the time there are unused bosses that can be bored and tapped .

Voltage :
Basicly an wire will do .



Pat





----- Original Message ----- 
From: "Paul Gmail" <pahven at gmail.com>
To: <urq at audifans.com>
Sent: Thursday, February 12, 2015 4:40 AM
Subject: [urq] Adding Gauges to Quattro


>I decided to add some VDO gauges to my 83 Quattro. So I built up a panel 
>for them under the dash and had it covered in a vinyl that very closely 
>matches.  So now I need to install the senders. I'm curious to know how 
>others have handled this.  I am installing coolant temperature, oil 
>pressure and temperature and voltage. The voltage was easy, but I'm a bit 
>puzzled as to the best way to handle the rest.
>
> First, does anyone know if the stock senders deliver the correct signals 
> for VDO Cockpit series gauges. It sure would be nice to just splice into a 
> few wires. Does the Quattro even have an oil temp sender?
>
> Assuming I can't use the factory senders, what is the best way to install 
> the new ones. I'm having some trouble relating the actual car to the 
> published wiring diagrams, so I'm not even sure which sender is which. 
> I'm using the diagrams in the red Bentley book.
>
> I found a sender at the bottom of the primary radiator, which I assume is 
> coolant. But then I found two senders at the back of the cylinder head. 
> One appears to control the cooling fans (rectangular connector with two 
> red/black wires and a green white), the other is mystery to me (black boot 
> with blue/yellow and blue/brown wires).
>
> Thanks for your help..
>
> Paul Ahvenainen
> Sent from my iPad
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