 Full production began in 1956, with 61 engines being built by Krauss-Maffei and 20 by MaK.The five V 200.0 prototypes were put through extensive testing, the aim being to ensure the production locomotives would be as reliable as the technology and maintenance standards of the 1950s allowed.In 1955 one locomotive travelled under its own power through Yugoslavia, Greece and Turkey partly as a test and partly to demonstrate the locomotive's capability to potential customers in those countries.