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How to Replace the Key Fob Battery for the Audi A6?

Model: Audi A6 MK 3, C6 - Years 2004-2012
Part: Key

In this tutorial, you will learn how to replace the key fob battery for the Audi A6. For this simple and quick operation, you will need a replacement CR2032 battery and a small flathead screwdriver or any equivalent tool. Start by prying open the slot located on the lower edge, just below the metal ring, to unlock the cover. Once fully opened, remove the old battery from the cover and insert the replacement, ensuring the negative terminal is facing up.

Updated on 18 June 2026 by ScegliAuto

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