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

Your answer is fully correct. When driving a car with a fully loaded trailer equipped with overrun braking, three important points apply:

1. On long downhill drives, the trailer’s overrun brakes can overheat because they are activated by the trailer pushing forward when slowing down. Continuous braking downhill can cause heat buildup, reducing effectiveness.

2. If the vehicle is stationary on an uphill slope, the overrun brake system does not work effectively because it relies on the trailer pushing into the towing vehicle to activate. In this case, the trailer might roll back slightly, so extra caution is needed.

3. Before separating the trailer from the towing vehicle, the trailer’s parking brake must always be engaged to prevent it from rolling away since the overrun brakes do not hold the trailer stationary by themselves.

These rules ensure safety when towing trailers with overrun braking in various driving and parking situations. Keep them in mind for safe trailer handling.