On 27 August 2025, at around 11 am, between 50 and 100 people staged a protest at Treptower Park, at the end of the new A100 motorway section in Berlin - Treptow-Kopenick (Berlin), to oppose the extension during the opening ceremony. The action, supported by initiatives such as A100 wegbassen (A100 wegbassen), criticized the costs, traffic increase, and climate impacts, and included chants against further expansion. The protest remained peaceful under heavy police presence.