Besides the test runs, the first power cars were used for various other purposes. 401 006 was sent to the Bundesbahn school at Munich-Aubing for three weeks in April 1990. Later the same month 401 005 was used for fine-tuning the new depot at Hamburg-Eidelstedt to the trains. Starting 22 May, 401 504 and 401 008 were used to train drivers for acceptance runs at Nuremberg. At the same time, 401 503 was sent to Nuremberg for a test disassembly. In early June 1990, 401 010 was sent to the environmental test chamber at the Austrian Research and Test Center Arsenal.