Auxiliary Battery -A1-, REMOVING AND INSTALLING, (VH0 + 0K4): Removing

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.

-- Visually inspect and classify the Auxiliary Battery -A1-. Refer to Auxiliary Battery -A1-, VISUAL INSPECTION AND CLASSIFICATION .

-- Remove the Battery -A-. Refer to Battery -A-, REMOVING AND INSTALLING, 0K4 AND VH0 .

-- Remove the pressure vent tube -1- from the grommet -2-.

Courtesy of AUDI OF AMERICA, LLC

-- Release the retainer in direction of -arrow-.

Courtesy of AUDI OF AMERICA, LLC

-- Remove the cap -4- over the "+" - terminal.

-- Remove the nuts -1 and 3- and remove the battery terminal clamps from the battery terminals.

-- Disconnect the connector -2-.

-- Remove the nut -7- and free up the ground wire -6- on the threaded pin.

-- Remove the bolt -8-.

-- Push the Auxiliary Battery -A1- -5- with the pressure vent tube and ground wire upward out of the luggage compartment.

If the Auxiliary Battery -A1- is replaced:

Remove the protective housing. Refer to PROTECTIVE HOUSING FOR Auxiliary Battery -A1-, REMOVING AND INSTALLING, 0K4 AND VH0 .