You want to tow a singe-axle caravan trailer behind your car. What must you check?

Your answer was correct. When towing a single-axle caravan trailer, it is essential to ensure that the permissible trailer load or the permissible coupling of the car is not exceeded. This is crucial for safety on the road, as exceeding these limits can lead to loss of control or accidents.

Additionally, checking whether additional rear-view mirrors are needed due to the width of the trailer is required for proper visibility. This helps ensure that you have a clear view of road conditions and other vehicles, enhancing safety while driving.

The option regarding the trailer being licensed to transport passengers is not relevant in this context because standard caravan trailers do not typically serve that purpose. Therefore, focusing on the maximum load and visibility requirements is critical for safe towing according to German traffic regulations.