You want to overtake. What is the right course of action here?

You correctly chose not to overtake because both precautions are important in this situation.

First, the yellow vehicle ahead might want to overtake as well, so attempting to pass it could lead to a dangerous situation if they move to the left lane at the same time.

Second, even though you may not see any oncoming traffic directly ahead, the road curves, limiting your visibility. Oncoming vehicles may suddenly appear around the bend, making overtaking unsafe.

In German traffic rules, you must ensure clear visibility and no risk from oncoming traffic before overtaking. You should also consider the intentions of vehicles ahead to avoid conflicts. This careful assessment makes overtaking safer.