Telematics Emergency Battery -A16-, REMOVING AND INSTALLING, IV0
WARNING: This page is about a different car, the 2024 Audi A4 allroad. However, it is still accessible from the selected car via links, so may be relevant.
The Emergency Battery for Telematics -A16- is installed in the Diagnostic Interface for the Data Bus -J533-.
-- Connected gateway: replace the emergency battery. Refer to => CONNECTED GATEWAY, REPLACING EMERGENCY BATTERY