The location of the Diagnostic Link Connector (DLC) is different for every vehicle and not always easy to find.
Every car manufactured after 1996 and compliant with the OBD-II (OBD2) system has this "universal diagnostic plug".
To simplify the eDriveKEY plug process, the application includes a plug assistant. This assistant is accessible during the application setup but also from the application in case you want to use an additional vehicle.
Just select the manufacturer, model and year of your car and the application tells you how to locate the DLC.