Subsequently, the track fell increasingly, due to maintenance deficiencies, she was temporarily only passable with a maximum of 25 km / h. This led in 1978 to a temporary ban on passenger trains. Already in 1979, however, the municipality of Vienna, the Austrian Federal Railways and the federal government agreed to a reactivation, this step took place not least in view of the establishment of the Verkehrsverbund Ost-Region (VOR) in 1984. Finally, the suburban line was also electrified with alternating current, expanded to double track again and also switched to right-hand drive. The stations Oberdöbling and Breitensee as well as the originally not existing station Krottenbachstraße were rebuilt, while the station Unterdöbling remained permanently open. On 31 May 1987, passenger services were resumed on the S45 line. In 1993 she was extended from Heiligenstadt to a temporary station at the Floridsdorfer bridge. In 1996, this was abandoned and extended the S45 to the newly built traffic station Handelskai. Initially, the 4020 series was used on the suburban line, which has since been replaced by the 4024 series.