Het tweede prototype, van 1965, kreeg de 1000 pk motor van het type 12 KVD 18/21 A-3 van VEB Motorenwerk Johannisthal, die in de serie werd toegepast. ###>But when it became clear that the Soviet Union was not in a position to supply these locomotives, the DR began developing its own diesel engine in 1963, which was to use as many of the components of the V 180 as possible.