You want to couple up a trailer with ball coupling. What is correct?

The correct combination for coupling a trailer with a ball coupling includes ensuring that the claw of the coupling securely fits around the ball and that the locking device engages, as well as connecting the electrics.

According to German traffic regulations, it is crucial for safety that the coupling is properly secured and that all necessary electrical connections are made for trailer lights and signals to function. Not addressing these aspects can create hazardous situations on the road, such as inadequate signal visibility and the risk of the trailer detaching while driving.

The jack wheel's position is also important, but it is not directly related to the immediate coupling process. It needs to be set appropriately to ensure it does not interfere while the vehicle is in motion. However, in this context, the primary focus should be on the secure connection and the electrical aspects to ensure safe towing.