What should you do if you've lost or forgotten something in one of the vehicles?

All items that we find in hvv’s vehicles and at stations and stops are handed in to Hamburg’s main lost property office. MOIA also hands in lost property to this central office.

Zentrales Fundbüro der Freien und Hansestadt Hamburg (Central Lost Property Office of the Free & Hanseatic City of Hamburg)
Bahrenfelder Strasse 254-260 22765 Hamburg
Phone +49 (40) 4 28 11-35 01

By the way, you can also search for the lost item online at www.fundbuero.hamburg.de.