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How to Replace the Key Fob Battery for the Audi A8?

Model: Audi A8 Typ4n, MK 4 - Years 2019-2026
Part: Key

To replace the key fob battery for the Audi A8, remove the key from the top of the device so that it can be taken out. After removing the key, pry open the fob housing to fully open the key fob. The battery inside can now be removed from its housing, allowing you to insert the new one. Secure the new battery by closing the key fob and reinserting the key to ensure everything works correctly.

Updated on 21 September 2026 by ScegliAuto

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