As a further development of the 628.2 series, a total of 304 diesel locomotives of the 628.4 series were put into service in Germany from 1992 to 1995. The Association of the two German States provided the occasion for the procurement of these vehicles. The main changes compared to the predecessors were the central doors, the bogies and the machinery. Due to the two-leaf swing sliding doors in the middle of the train, the 628.4 are easily distinguished from all other 628. The paint finish in the currently available product colors in mintturquoise, pastel turquoise and light gray gave the train an attractive and modern appearance.This text is machine translated.