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How to Replace the Key Battery on an Audi A5

Model: Audi A5 8T8, 8T, 8T3, 8F - Years: 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016
Part: Key

See other generations:
Video tutorial

Before you start, open the physical key of your electronic key for the Audi A5 by pressing the silver top button. Next, pry off and remove the rear cover of the battery using a flat screwdriver.

This will give you access to the key battery. Now, extract and remove the flat battery, and you will have completed the disassembly.

To fit the new battery and close the key, simply repeat this procedure in reverse, and you will have finished.


Updated on 8 April 2026 by ScegliAuto


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by ScegliAuto

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