How can you see that the coupling pin has engaged correctly in the case of an automatic trailer coupling?

In the case of an automatic trailer coupling, ensuring that the coupling pin has engaged correctly is crucial for safe towing. The correct options involve checking the control pin position or the control light in the driver’s cabin. This ensures that the trailer is securely coupled and minimizes the risk of accidents on the road.

By observing the control pin position and the indicator light, the driver can confirm that the coupling mechanism is properly secured before setting off. The release lever position is also relevant but not sufficient alone; it indicates readiness to attach the trailer but doesn't guarantee that the coupling has engaged correctly. Briefly driving forward and stopping doesn't provide a reliable confirmation of a correctly engaged coupling.

According to German traffic regulations, it is vital to verify all these indicators to maintain safety and legality while towing, ensuring the trailer remains attached securely throughout the journey.