Hi,
On the basis of our driver feedback and cross verifying it with private street imagery, I found the following issue to exist in this location. Since the street imagery is older, I would like to check if the issue still exist in this location. If you are going to survey or have local knowledge of this vicinity, please make necessary changes in OSM.

Issue        :  Looks like there is no motor car restriction for Gutenbergstraße and no such sign boards present near node 259451858. "motorcar=no" tag given 11 years ago.
Location   : 50.1689530, 8.2125802
Proof         :  Sign board (2018)
Correction: Remove "motor car = no " tag for Gutenbergstraße  (way 31783826)
 
Regards,
Srinatpa