Saarbrücken
Bürgeramt City
Gerberstraße 4, 66111 Saarbrücken
Wednesday mornings are open access, and on other weekdays you book first.
Bring the identity card concerned and ask about any further identification needed. Later activation, PIN changes and unblocking are free. For home use follow the official AusweisApp guidance; ask the office about the appropriate next step if the card is damaged or lost rather than booking a PIN reset for a missing card.