Battery -A-, DISCONNECTING AND CONNECTING: Notes

WARNING: This page is about a different car, the 2024 Audi SQ7, 2024 Audi Q7, 2023 Audi SQ7, and 2023 Audi Q7. However, it is still accessible from the selected car via links, so may be relevant.

Vehicles with 48V System (PR Number VH2/VH3)

The 12V and 48V systems reinforce each other via the Voltage Converter, 48 V/12 V -A7-. As a result, the system can only be de-energized when the 48V system was de-energized beforehand.

-- De-energize the 48V system. Refer to 48V SYSTEM, DE-ENERGIZING .

All Vehicles

For subsequent work on the SCR system, wait until all of the reducing agent has returned after switching off the ignition.

Disconnecting

-- Adjust the right front seat as far to the rear as possible. Use the entire adjustment range of the seat adjustment for this.

-- Remove the floor mat from the footwell.

Courtesy of AUDI

-- Release the cover -1- upward in direction of -arrow A- and remove toward the center of the vehicle in direction of -arrow B-.

-- Open the cover -3- over the battery negative terminal.

Fig 1: Disconnecting Battery

Courtesy of AUDI

-- Loosen the nut -1- several turns and remove the battery ground cable clamp -2- from the battery terminal.

-- Use insulating tape to prevent the negative terminal from accidentally contacting the battery terminal clamp.