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How to Replace the Key Battery of the Audi S8

Model: (Various brands) Various
Part: Key

If the smart key of your Audi S8 (2016-2022) no longer works due to a completely dead battery, don't worry as we will discover how to replace it in just a few seconds. First, remove the physical emergency key by pulling it outwards, then take out the battery holder and replace the old button cell with a new one (model CR2032). Finally, reassemble the battery holder and insert the emergency key back into the cover. Test the key's functionality and you're done.

Updated on 22 July 2026 by ScegliAuto

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