With the end of the "Mittel-Thurgau-Bahn" the RBDe 566 631-634 railcars, built in 1994, were handed over to Thurbo, and in 2006 finally to the SBB. With front in red now an SBB signs this vehicles are in service on the S 6 and S 7 between Luzern, Wolhusen, Huttwil, Langenthal and Wolhusen-Trubschachen. RBDe 566 172 with cars AB and cab car Bt is leaving Luzern for Langenthal.