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Replacing 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

Today's step-by-step guide will show you how to disassemble and replace the battery in the key fob for the Audi A4. First, take your key fob and remove the physical key from it. Then, use the slot created to pry the fob apart, removing the old battery as shown in the video.

At this point, install the new battery of the correct type with the same designation (in this case, a CR 2032 3V); insert it in the correct orientation and finally reassemble the key fob, checking its functionality!


Updated on 24 October 2026 by ScegliAuto


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by ScegliAuto

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