The Dortmunder Stadtwerke's first HeiterBlick B80D (Vamos HF) began operating in regular passenger service on April 23, 2024, after approval had been granted the day before. The video shows the two pairs of railcars 367 + 368 and 366 + 365 used on the U42 in the Hombruch district of Dortmund. Due to construction work, the U42 only runs between the Groterbachstraße and Schulte Rödding stops.