Battery -A-, DISCONNECT AND CONNECT, 0K4: Disconnecting
WARNING: This page is about a different car, the 2022 Audi S3, 2022 Audi RS 3, 2022 Audi A3 Quattro, and 2022 Audi A3. However, it is still accessible from the selected car via links, so may be relevant.
-- De-energize the 48V system. Refer to 48V SYSTEM, DE-ENERGIZING .
-- Switch off the ignition and all electrical equipment. Place the ignition key outside of the vehicle.
-- Remove the cover -1- over the battery negative terminal.
-- Loosen the nut -3- several turns and remove the battery ground cable terminal clamp -2- from the battery terminal.