Location of Knock Sensors on 2.5tdi?

[leswoollam]

Audi A4 B5 Avant 1998.

I have a fault code 00578 Knock Sensor Regulation Cyl 2 08-10 Control Limit Surpassed - Intermittent

I have replaced the injector to Cylinder 2 and am looking to replace the knock sensor. . . if only I could find it!

Does anyone know where this is located on the diesel 2.5tdi?

 

[B5dawg]

In the v under the fuel pump I believe