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How to Replace the Key Battery in an Audi A4 B7

Model: Audi A4 B7 - Years 2004-2008
Part: Key

If you want to learn how to properly replace the battery inside the key of your Audi A4 B7 (model years 2004-2008), just follow these instructions and put them into practice. First, get a small flathead screwdriver and use it to remove the back cover of the key. Once done, remove the existing button battery and insert the new one (model CR2032). After completing this simple task, just reassemble the back cover, and you're finished.

Updated on 27 August 2026 by ScegliAuto

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by ScegliAuto

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