Battery, Disconnecting And Connecting: Disconnecting
WARNING: This page does not describe the selected car, but rather 19 other vehicles, including the 2017 Audi S5, 2017 Audi A5 Quattro, 2016 Audi S5, 2016 Audi A5 Quattro, and 2015 Audi S5. However, it is still accessible from the selected car via links, so may be relevant.
-- Turn off the ignition and remove the key.
-- Lift the luggage compartment floor and engage it on the body.
-- Remove the wind deflector from its mount.
-- Remove the nut -1- and remove the wind deflector mount -2-.
-- Open the cover -1- over the battery negative terminal.
-- Loosen the nut -3- several turns and remove the battery ground cable terminal -2- from the battery terminal.