As a result of the very late delivery of the new "FV-Dosto" from Bombardier (series RABe 502/RABDe 502), SBB is forced to continue using older rolling stock, which was actually intended for scrapping. In this train IR 2259 of the IR37 line from Basel via Zurich to St.Gallen, which enters Winterthur and is pulled by Locomotive Re 4/4 II # 11143 (Re 420 143), more than half of the cars are not air-conditioned. In the second class there is only one air-conditioned car, no problem at the current temperatures.