You are driving a car with a fully loaded trailer equipped with overrun braking. What special aspect should be noted here?

When driving a car with a fully loaded trailer that uses an overrun braking system, it's important to understand three key aspects:

1. Longer downhill drives can lead to overheating of the trailer brakes. This is crucial because the braking system needs to be effective to ensure safety during descents. If the brakes get too hot, they might fail to function properly.

2. The overrun brake system is not effective if the vehicle combination is stationary on an uphill slope. This is important because if the vehicle is on an incline, the overrun brake cannot hold the trailer, potentially leading to it rolling back.

3. Before disconnecting the vehicle combination, it is necessary to activate the trailer’s parking brake. This is a safety measure to prevent the trailer from rolling away when separated from the towing vehicle.

All three points emphasize the importance of handling a trailer correctly to maintain safety on the road, conforming to the regulations outlined in the German traffic laws. Understanding these details helps ensure safe towing practices.