A driver in the passing lane of the autobahn must slow down if he or she sees a vehicle approaching from behind with flashing headlights. Is this statement true or false?

The statement is false. On the autobahn, if a driver in the passing lane sees a vehicle approaching from behind with flashing headlights, it is a signal that the vehicle intends to overtake. The appropriate action for the driver in the passing lane is to maintain a steady speed if they are complying with speed regulations, or to move to the right if possible to allow the faster vehicle to pass safely. Slowing down could create confusion and impede traffic flow, as the intention of the vehicle with flashing headlights is clearly to pass. Therefore, the correct response is that the driver should not automatically slow down in this situation.