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How to Open the Remote and Replace the Battery of the A3 - A4 - A5 - A6

Model: Audi A3 Sportback MK 3 - Years 2012-2019
Part: Key

Let’s discover the steps to dismantle the key remote and replace the battery for the Audi A3 Sportback, as well as the A4, A5, and A6. First, take the remote in hand and press the button on the back to remove the physical key from the remote; then, pull out the battery holder found inside, as shown in the video. At this point, replace the battery with a new one of the correct type (in this case, a CR 2032 3V); refit it into the battery holder, ensuring it is inserted the right way.

Updated on 8 June 2026 by ScegliAuto

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