Imzyyr

Hi all, I have recently picked up an Audi A8 3.0 v6 tdi 2006. Im very impressed as it’s my first Audi, I’ve always been a BMW guy. Anyway I have a fault code and the eml light is on. Fault code is P1018 (intake manifold runner *bank 2*) I need to locate the part number for this part, can anyone recommend on best way to locate without having to the the part out? Thanks Imran