The development of the train that was finally put into service began in September 1983 under the leadership of the Bundesbahn in Munich. Manufacturing started by the end of 1983, with the mechanical part of the powercars being developed and constructed by Krupp, Henschel and Krauss-Maffei. The electrical parts were developed by Siemens, AEG and Brown, Boveri & Cie. Both the parts were assimilated and finished by Friedrich Krupp in Essen (powercar 410 001) and Thyssen-Henschel in Kassel (powercar 410 002). By October 1984, the assembly and finishing of the electrical parts were ready. In January 1985, the chassis was attached to the outer hull.