Can't find this with Whatthefont or Fontsquirrel

Centrale Sans  Vorgeschlagen von marty666 

Have a look at the y and the a.
It seems they used one of the older versions of Centrale Sans.
https://web.archive.org/web/20150206053652/http://www.typedepot.com/centrale-sans

yes, the Book version!

Thanks Marty and Akira!