MDC Power GmbH is an engine manufacturer with plants in Kölleda and Arnstadt in Thuringia, Germany. It is a wholy owned subsidiary of Daimler AG.
The plant in Kölleda has produced four-cylinder petrol and four and six cylinder diesel engines since late 2003. It commenced building the four-cylinder 4A9 and three-cylinder 3A9 engines for Mitsubishi, Mercedes-Benz and Smart vehicles.
The Arnstadt plant produces crankcases for Mercedes-Benz engines using the Nanoslide process where cylinder liners are coated and finely honed.
The company was founded in 2001 as a joint venture between Mitsubishi and Daimler Chrysler. The Kölleda plant was built as part of this venture with at a cost of €244 million. In 2006 with the discontinuation of the Smart ForFour, Mitsubishi exited the venture with the company becoming wholly owned by Daimler Chrysler.