I am looking for a part that I can’t identify what it is, but it is broken and need a replacement for it ASAP. I have a 2003 Audi A6 Quattro 4.2L. I have enclosed a picture of the part. It looks like a black bone. Let me know if the pictures are good. The part numbers that I got off the part was (004-538, PA6-GF-30), but when I searched it, I couldn't find that part to match that item. Can you please help me with this product? Thank you very much.

 

That's part of the actuator for the variable manifold. I don't know the official name of the part but those terms in a search should get you into the neighborhood.