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        :  Missing private access tag in service road originating from Dornbachstraße Road
Location   : 50.2155808, 8.5614884
Proof         : Sign board (2018)
Correction: Add private access to service road
 
Regards,
ssrijeet