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How to Change the Key Battery of the Audi S4

Model: Audi A4 B9 - Years 2014-2024
Part: Key

If you need to replace the remote key battery because it is no longer efficient, follow the instructions below and refer to the video. First, extract the emergency key by pressing the small button on the side of the remote. Then, using the emergency key, engage the lock to open the cover that contains the battery. Remove the cover, take out the old battery, and replace it with a new one (model CR 2032). Reinsert the cover into the remote and reposition the emergency key in its housing.

Updated on 2 July 2026 by ScegliAuto

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by ScegliAuto

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