 The first unit, number 1801 was transferred to the Velim railway test circuit for testing in December 2008.On March 3, 2009, the first unit (roadnumber 1802) was officially delivered to SNCB/NMBS for test and homologation purpose.Homologation issues delayed commercial introduction (originally planned for the summer timeschedule - May 2011), as a result Siemens was obliged to pay the maximum amount of penalties (€ 21.12 million).