You want to turn left. When must you pay attention to the traffic following behind you?

In the context of turning left, it's important to pay attention to the traffic behind you in two key moments: before selecting the appropriate lane and before taking the turn.

Before selecting the appropriate lane, it's crucial to check for vehicles that may be approaching from behind, as this can help prevent potential collisions or misunderstandings regarding your intent to turn.

Before taking the turn, being aware of the traffic behind you is equally vital. This is the moment where you must ensure that vehicles are not trying to overtake you or maneuver around you as you begin your turn, which can also create dangerous situations.

It's not necessary to consider traffic after taking the turn in this context because your primary focus should be on the movements and actions of vehicles as you're about to execute the left turn. Understanding these points helps ensure safety for both yourself and other road users, which is essential under German traffic regulations.