Fuel Line Clip P/N Help Please

[rockhouse66]

I want to replace the two plastic fuel line clips on the LH side of the engine compartment (which I partially broke struggling with replacement of the coolant tank).  I thought I had these figured out as p/n 999 507 521 40 but these are not correct.  I would also appreciate some tips on how these are fastened.  There appears to be sort of a plastic pin on the RH side of the clip - how does that come out?  (not much room in that area either)

 

It is the clip at the top of this photo that retains the fuel line and some other stuff.

 

 

Edited January 28, 2017 by rockhouse66

[rockhouse66]

So apparently these are actually vacuum lines not fuel lines.  I just spent 45 minutes at a Porsche dealer parts counter with no success identifying this item.  He suggested I remove the clip and try to find a number molded into it.  To do this, I think I need to lower engine for better access.

 

Before I go to this trouble, I am bumping this in hopes of some help with the p/n please.