Read this thread all the way through ----
Audi V6 TDi 2.7 & 3.0 Inlet Manifold, Swirl Flap Repair Kit.

My A5 V6 3.0tdi Quattro had both banks throwing up faults, I completed bank two in 10 minutes, changed bank one rod only as I didn't fancy my chances of getting the clip on as it has to be fitted from underneath!
There are some members who have advise on bank one clip replacement on same thread!
Simple fix really thanks to this forum and a cheap one too.