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How to Replace the Audi A4 Remote Key Battery

Model: Audi A4 B9 - Years 2014-2024
Part: Key

To replace the battery in the Audi A4 remote key, press the designated button on the device to slide out the key. Once the key is removed, you can pull out the corresponding tray underneath, which contains the battery. After extracting the tray, remove the old battery and replace it with a new one. Once replaced, reinsert the battery into its slot, reposition the key, and check that everything works correctly.

Updated on 20 August 2026 by ScegliAuto

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