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How to Change the Key Battery of an Audi A3?

Model: Audi A3 8Y, MK 4 - Years 2020-2026
Part: Key

Changing the remote key battery for the Audi A3 is very simple and can be done by anyone. As shown in the video, all you need is a flat tool to lever. A flat screwdriver works perfectly. Use it to lever and lift the battery compartment cover, and also to extract the old battery from its housing. Once done, insert the new battery, which should be a button type with the code CR2032, and close the cover. You have successfully replaced the key battery for your Audi A3!

Posted on 4 July 2026 by ScegliAuto

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by ScegliAuto

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