The name âMTU Reman Technologiesâ might be new in the city of Magdeburg, Germany, but behind the Tognum subsidiary that remanufactures large diesel engines lies 175 years of industrial history. On September 6 and 7, MTU Reman Technologies celebrated this anniversary, by holding a special ceremony and opening its doors to the public. Hartmut Möllring, Minister of Science and Economic Affairs in the federal state of Saxony-Anhalt, pointed out: âMachinery and plant engineering have very deep roots in Magdeburg.