WARNING: This page is about a different car, the 2024 Audi S6 and 2024 Audi A6 Quattro. However, it is still accessible from the selected car via links, so may be relevant.
Procedure
-- Open the door.
-- Release the connector safety catch in the -direction of the arrow A-.
Fig 1: Disconnecting Door Cut-Off Connector
Courtesy of AUDI OF AMERICA, LLC
-- Remove the door cut-off connector -1- outward -arrow B-.