They are Alstom Coradia units that until very recently ran the RE and RB services between Munich and Augsburg and beyond. The route is now operated by GoAhead with new Siemens units, so these have been moved to Baden Wurttemberg, and the Class 440 can be found elsewhere in Germany with other operators. Augsburg is known is the Fuggerstadt, after a prominent local family. And yes, fnarr fnarr.
You're correct and this was a DLC train for the TSC version of Hauptstrecke München Augsburg standard with Nürnberg Regensburg route. Time to bring it to TSW 3