Battery -A-, DISCONNECTING AND CONNECTING, 0K0: Disconnecting
WARNING: This page is about a different car, the 2021 Audi S4 and 2021 Audi A4 Quattro. However, it is still accessible from the selected car via links, so may be relevant.
-- Switch off the ignition.
-- Lift the luggage compartment floor cover.
-- If equipped, remove the spare tire and vehicle tool kit mount.
-- Open the cover -3- over the battery negative terminal.
-- Loosen the nut -1- several turns and remove the battery ground cable clamp -2- from the battery terminal.