The last point brought the modernized railcar and the RMV as the initiator of the modernization in the early days of severe criticism, as many passengers and train employees the new door signals (which also include a signal when the doors are open) as annoying, even annoying. The RMV referred to existing EU directives, which oblige the installation of such signals, admitted, however, that there had been a manufacturer-design error in the installation of the new signals, which could have increased the intensity of the beep unintentionally.