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How to Change the Battery of an Audi A3 Remote Key

Model: Audi A3 8V, MK 3 - Years: 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019
Part: Key

See other generations:
Video tutorial

How do you change the battery of an Audi A3 remote key? Let's see how to change the key battery. Take your remote key and use a screwdriver to pry open the plastic casing of the key. Pry until the back cover separates from the casing, then remove the worn battery with a screwdriver.

Refit the cap on the remote key casing until you hear it click into place. Check the remote's functionality by testing the door lock and unlock buttons.

Use a new battery of the same type and voltage as the one previously removed.


Updated on 5 May 2026 by ScegliAuto


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by ScegliAuto

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