Which requirements must be fulfilled before coupling a semi-trailer?

The fifth wheel must be unlocked and opened

The fifth wheel and coupling must be at roughly the same height

All tube and cable connections must be established

Here is Our AI Assistant's Explanation

Your answer is correct. Before coupling a semi-trailer, the fifth wheel on the tractor must be unlocked and opened so that the kingpin of the trailer can be properly inserted and secured. Additionally, the fifth wheel and the trailer coupling need to be at roughly the same height to ensure smooth and safe connection without damage or difficulty. The third option, connecting tubes and cables, is done after coupling, not before. Understanding these steps ensures safe and proper coupling of semi-trailers in line with German traffic regulations.

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iFahrer – Driver’s License

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iFahrer – Driver’s License

Master driving with AI – Prepare, Practice, Pass!