A4 2.6? ABC? If you meant 2.8 AFC V6, then the Engine Coolant Temp
sensor is located on the coolant line behind the cylinder head on the
passenger side. It is a four pin sensor.
Best of Luck
Chuck

"Steve68s" > wrote in message
...
> Hi Guys,
>
> Dose anyone know where the engine water temp gauge sender unit is on a
> 1996 A4 2.6 - ABC v6 engine? I have the top engine cover off but can't see
> anything that looks like it,
>
> Steve.
>
>