What must you remember when you want to change lanes?

When changing lanes, it's crucial to signal your intention in advance, which helps inform other road users of your actions. This is covered under German traffic law, specifically the requirement for proper signaling to ensure safety on the road. Additionally, you must pay attention to the traffic behind you to avoid collisions, ensuring that there is sufficient space to merge safely into the new lane. The suggestion to brake heavily before changing lanes is incorrect, as such abrupt actions can confuse other drivers and may lead to dangerous situations. Understanding and applying these rules helps maintain smooth and safe traffic flow.