DSB decided the place the order on August 22, 1997. The machines would be delivered in 1999-2000 to its independent freight division, DSB Gods.

The EG series are part of the ´EuroSprinter´ familiy, representing the second generation of this uniform platform, of which the DB 152 series more or the less can be regarded as the prototype. Proven components of this type therefore also found their place in the EG series including the shape of the exterior. Many different Siemens factories contributed to the development of the EG series. Traction and electronics parts are build by Siemens Verkehrstechnik. The bogies are built by Siemens Duewag in Krefeld-Uerdingen and Siemens SGP in Graz (Austria). Frames and bodies finally were constructed by Siemens Krauss-Maffei in München, were also final assembly took place. Originally it was planned to paint the locomotives completely red, but in 1998 DSB Gods presented it own style, resulting in a very artistic dark blue livery with blue and yellow details.

The roll-out of the first EG 3100 for DSB Gods took place in München on the August 3, 1999. Then a test program was started. EG 3100 locomotives ran on Siemens' test tracks of Wegberg-Wildenrath (Germany), Velim (near Celeznice in the Czech Republic) and in Germany (e.g. the Frankenwaldbahn for traction effort tests), Denmark and Sweden. On June 9, 2000, first EG 3100 was being used for a commercial service. On June 22, 2000, the first nonstop service from Padborg (German-Danish border) to Malmo (Sweden) was completed. Of course there were the usual starting problems but since the end of 2000 the EG 3101-3113 function very well.

In 2001 DSB Gods was taken over by the German logictics company Railion, and renamed Railion Denmark. In 2008 the company was renamed again as Railion Scandinavia. Except for the removal of the DSB Gods logos in 2001, this has not affected to appearance of the EG 3100 series so far.