The Thuringian subsidiaries of Daimler AG in Kölleda and Arnstadt are important parts of the worldwide powertrain production network, whose lead plant is in Stuttgart-Untertürkheim.
The engine plant of MDC Power GmbH in Kölleda has assembled four-cylinder petrol and four/six-cylinder diesel engines for Mercedes-Benz vehicles since 2003.
In 2013, the engine plant started production of an AMG engine for the first time.
The component plant MDC Technology GmbH in Arnstadt processes crankcases for Mercedes-Benz engines with the NANOSLIDE® process. In this process the cylinder liners are coated and finely honed. Processing the crankcases helps to reduce weight and fuel consumption, and makes a major contribution to CO2 reduction.