Okay, I have been searching for a while and I have not been able to find the information. I was trying to replace my own fuel filter today on my r56, however when unscrewing the top of the fuel filter housing I was an idiot and used a screwdriver in the hose Inlet port to unscrew it. That little point where the fuel line clips into the housing top. Anyway, I popped out a little piece that was in there. It's a black piece with a couple of O ring's. I believe this is what seals the fuel line in the housing top. Does anybody have any idea how these pieces go into this port in order. I have all the parts, but no frame of reference as how they go back in. Now I am sitting here with the back seat off and the fuel filter change done but I screwed up and I'm stuck. I apologize if this is in the wrong section, I am new to posting here however I am not new to using this site for reference. Any help would be great or even pictures if anyone has some of that Inlet.

 

Erm! They are so badly damaged they will not work anyway so looks like a replacement for you Sir.