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How to Replace the Key Battery of the Audi A5

Model: Audi A5 8T8, 8T3, 8T, 8F - Years 2007-2016
Part: Key

If the smart key of your first-generation Audi A5 has suddenly stopped working and you want to learn how to correctly replace the battery inside, simply follow this straightforward procedure. First, take the key and use a small flat screwdriver to remove the rear cover, then locate and remove the exhausted battery. At this point, insert the new battery (CR 2032) and refit the rear cover correctly. Test the key's functionality, and you are done.

Updated on 25 August 2026 by ScegliAuto

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