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How to Replace the Remote Battery of the Audi A3?

Model: Audi A3 8V, MK 3 - Years 2012-2019
Part: Key

To replace the remote battery of the Audi A3, lift the key from its housing by pressing the button located at the top of the device. Next, use a flathead screwdriver to pry open the rear cover of the remote. Underneath, you will find the battery, which can be removed from its housing and replaced with a new spare part. After replacing, refit the plastic cover and lower the key.

Updated on 2 June 2026 by ScegliAuto

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