Argent  Vorgeschlagen von akira1975 

I think they used one of the older versions of Argent CF.
https://web.archive.org/web/20160119073247/http://www.connary.com/argent.html
http://www.identifont.com/show?3RCM

You can see the latest version here:
https://connary.com/fonts/argent/

The lowercase a in the version looks different.