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Do it yourself
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Before you begin, detach and remove the physical key from the electronic key of your Audi A4 by simply pressing the top unlock button. Start by extracting the battery holder from inside the electronic key. Once you complete this step, you will reach the dead battery, which you need to detach and remove, completing the disassembly. To install the new battery, simply reverse these steps, and you will have successfully completed the replacement.
Updated on 8 April 2026 by ScegliAuto
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