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How to Replace the Key Fob Battery for the Audi A4?

Model: Audi A4 B9 - Years: 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023, 2024
Part: Key

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Video tutorial

In this tutorial, you will see how to replace the key fob battery for the Audi A4, a very simple and quick operation. You will need a replacement battery of type CR2032. First, grab the key fob by the plastic half, then press the two buttons on the sides of the metal area and pull out the emergency key. Next, repeat the process for the indicated plastic piece, remove the drawer, and proceed with the battery replacement.

At this point, just reassemble everything by following the reverse procedure.


Updated on 30 September 2026 by ScegliAuto


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Watch the video!


by ScegliAuto

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