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How to Replace the Battery in an Audi A3 Key?

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

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Video tutorial

The Audi A3 key is designed so that you do not need to remove the blade and open the entire remote to replace the battery. The only thing to do is open the flap on the back of the remote using a small flathead screwdriver.

This must be small because its tip goes into the appropriate slots that allow you to release the catches of the flap. Once this is removed, you can use the same screwdriver to extract the battery and replace it with a new one. The battery to use is a CR2032 button cell.


Updated on 1 July 2026 by ScegliAuto


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To reset the tyre pressure warning light on the Kia Niro EV, inflate the tyres until they reach the correct pressure value. This value is indicated on the sticker attached to the driver's door pillar. Once the tyres are inflated, turn on the instrument cluster to check that the warning light has completely disappeared from the display. If it is still present, you may need to drive for a few miles to ensure it disappears completely from the screen.

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