You are overtaken by a police vehicle, which pulls in immediately in front of you. The words "BITTE FOLGEN" (PLEASE FOLLOW) appear illuminated in red on the roof. What should you do?

When you see a police vehicle displaying "BITTE FOLGEN," it is a directive for you to follow that vehicle. This is due to the police needing to either conduct an investigation, issue a traffic stop, or lead you to a safer location.

The first correct action is to follow the police vehicle. Failing to do so could lead to complications, as it may imply non-compliance with police instructions.

The second action is to stop if the police vehicle comes to a stop. This is crucial as it maintains the flow of traffic and adheres to the request from the police.

The third option you chose, regarding leaving the engine running once stopped, is not correct in this scenario. According to German traffic regulations, when you stop your vehicle for a police officer, you should turn off the engine unless otherwise instructed. This ensures safety and prevents any unintended vehicle movements.

It's important to understand that responding appropriately to police signals ensures not only your safety but also that of the police and other road users.