Telematics Emergency Battery -A16-, REMOVING AND INSTALLING, WITH CONNECT PLUS, (IV0 THROUGH IV8), THROUGH MY 2020: Notes
WARNING: This page is about a different car, the 2022 Audi SQ7, 2022 Audi S7, and 2022 Audi Q7. However, it is still accessible from the selected car via links, so may be relevant.
The Telematics Emergency Battery -A16- is located in the Control Module for Emergency Call Module and Communication Unit - J949-.