Starting 1976, the Chiquitas were used on the right-hand waterside of the Lake of Zurich. Due to massive problems mainly with the door controllers, which didn't work correctly because of the flexing floors, they were later used mainly on spur lines in north-eastern Switzerland (Kreis III). Despite being rarely used due to the problems, two trainsets (2001 and 2003) were rebuilt in 1990 and 1991, respectively, and got, among other things, a new NPZ-like livery. In 1992, all four units were defective. Instead of undergoing another revision, they were put on sidings in Glarus and were not used any more. In 1993, a single trainset was rented to the Mittelthurgaubahn, whereupon the B car was removed. The AB car had to stay, because it contained some of the trainset's systems. All trainsets were retired from service in 1997 and finally scrapped in 1998.