The new trains will enter service in April 2014 on the 55km Szombathely - Szentgotthárd line in western Hungary, which GySEV took over from Hungarian State Railways (MÁV) in 2006. GySEV completed the electrification and upgrading of the line last year and currently uses locomotive-haulage for regional services. The company first tendered for new trains in 2011 without success, and in the second round of tendering only Stadler submitted a bid. The emus have been entirely funded by the European Union.

Meanwhile, GySEV has acquired four two-car class 5147 dmus from Austrian Federal Railways (ÖBB) for €1.52m, and also plans to invest €1.1m to refurbish 49 former ÖBB Schlieren coaches.