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Replacing the Key Fob Battery for Audi A4 B8

Model: Audi A4 B8 - Years: 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016
Part: Key

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Video tutorial

This guide shows you how to disassemble and replace the battery in the key fob of an Audi A4 B8. First, take your key fob and remove the key by pressing the button on it; then pull out the battery compartment inside, as shown in the video. At this point, remove the old battery and replace it with a new one of the correct type (in this case, a CR 2032 3V); simply insert it in the correct orientation and reassemble the key fob by reversing the procedure!


Updated on 1 April 2026 by ScegliAuto


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by ScegliAuto

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