Passenger traffic on the branch slowly diminished. The line from Wieselburg to Gresten was converted from narrow-gauge to standard gauge in 1998 due to extensive freight operations, discontinuing passenger operations. Before then, the standard-gauge goods wagons were loaded onto transporter wagons in Wieselburg for the trip along this stretch of line. In connection with this gauge conversion, passenger service on the line east of Wieselburg to Ruprechtshofen was discontinued in 2001, followed by the discontinuation of service between Mank and Ruprechtshofen in 2003. Service on the last section of the branch line, between Ober Grafendorf and Mank, ceased in 2010, when the line closed completely.