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How to Replace the Battery in an Audi A3 Key?

Model: Audi A3 8V, MK 3 - Years 2012-2019
Part: Key

The Audi A3 key is designed so that you do not need to remove the blade and open the entire remote to replace the battery. The only thing to do is open the flap on the back of the remote using a small flathead screwdriver. This must be small because its tip goes into the appropriate slots that allow you to release the catches of the flap. Once this is removed, you can use the same screwdriver to extract the battery and replace it with a new one. The battery to use is a CR2032 button cell.

Updated on 1 July 2026 by ScegliAuto

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