COUPLING SYSTEM

A coupling system for a fifth wheel coupling includes a first plug unit having a plurality of first plug connectors, and a second plug unit having a plurality of second plug connectors to engage and transmit power and/or fluid with the first plug connectors, and an adjuster unit having a guide section configured to be brought into engagement with a retaining element on one of the plug units to transmit a force from the adjuster unit to the plug unit, which displaces the plug unit along a plug-in axis, wherein the adjuster unit can be displaced transversely and laterally to the plug-in axis or can be rotated about the plug-in axis.