The final weld of rails on the second phase took place on 31 March 2015 and was accompanied by a ceremony marking the end of construction of Phase 2, although work on signaling continued. The opening of the second phase had been scheduled for 3 April 2016, but was delayed after a train derailed near Eckwersheim during commissioning trials, resulting in 11 deaths and damage to a bridge on the line. The line opened on 3 July 2016. A landslide in March 2020 caused a derailment, with 22 minor injuries, and one serious.