Hi Timm,
if you read this, you should know that I owe you a beer! At least!!! 
I am going to tell a story...
Back in 2014 I was aiming to change my PVC and my Head Cover Gasket...
8er.org/forum/index.php?attachment/42796/8er.org/forum/index.php?attachment/42797/
ending to this situation in my engine bay:
8er.org/forum/index.php?attachment/42798/
All went well and good... but in the end a small piece was left 
, which looked like a cable holder:
8er.org/forum/index.php?attachment/42799/
No matter what I did and how I searched, nowhere seemed to be lacking of a cable holder... So this situation lasted for 6 years... with the remaining piece laying alone in my storage.
Then a few days ago I was watching this YouTube video from you, just for the pleasure of it:
then BANG!!! I saw the enlightenment!
8er.org/forum/index.php?attachment/42800/
Now I finally know where this holder is at home! (Fuel line holder in the outer back corner of the left bank)
All done, time for a cup of tea!
So if you one day are landing to the Frankfurt Airport for any reasons, give me a call, I owe you a beer! Good old german beer... chemical free! 
Thank you for your engagement!
Danilo
