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How to Change the Key Fob Battery of an Audi A4

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

How do you change the key fob battery of an Audi A4? Let's see in this video how to do it in detail. Take your key fob and press the button to release the metal key. Once extracted, use your fingers to grasp the two plastic tabs on the key fob cover, press, and pull the piece out of the cover. Remove the worn battery from the housing, take a new one of the same size and voltage. Reinstall the plastic battery holder in the key fob cover, and finally insert the metal key back into the cover. Check that the key fob works correctly.

Updated on 27 February 2026 by ScegliAuto

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