The hydrodynamic impact absorbers located at the front end of the vehicle form the heart of the ZF Crash System.They comprise an outer and inner tube, which move into each other in the event of a collision. The special feature: The dampers have two function ranges for different collision intensities. As a result, the energies arising from even the smallest collision are reliably absorbed. In the event of slight collisions, such as those that may occur during parking or maneuvering, slight collision forces are absorbed and are not passed on to the vehicle. The impact absorber absorbs them without damage and after a short period returns to its original position as a result of the prevailing internal pressure.