Production of the steel car bodies will start in Bombardier's Görlitz plant this summer, while the Flexx Eco trailer bogies will be produced in Siegen. Bombardier will also conduct final assembly of up to two intermediate coaches per train and all of the end cars at its Hennigsdorf plant north of Berlin starting in spring next year.

DB signed the original framework contract for up to 300 ICx trains with Siemens in 2011, and Siemens in turn awarded Bombardier a framework contract for components. The first firm order was for an initial batch of 130 trains. The ICx trains are due start entering service in 2017 and will replace locomotive-hauled Intercity trains.