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How to Replace the Key Fob Battery of an Audi A4

Model: Audi A4 B6 - Years 2000-2004
Part: Key

Replacing the key fob battery of an Audi A4? Let's see in this video how to proceed in detail. Take your key fob and use a screwdriver to separate the two halves of the key fob cover. Once separated, take one half of the cover and pull it apart (as shown in the video). Remove the worn battery from the compartment (after taking out the battery holder from the cover), take a new one of the same size and voltage. Reinstall the plastic battery holder into the key fob cover, then join the two halves of the cover. Check the proper functioning of the key fob.

Updated on 13 March 2026 by ScegliAuto

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by ScegliAuto

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