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How to Replace the Remote Battery in the Audi A3?

Model: Audi A3 MK 4, 8Y - Years: 2020, 2021, 2022, 2023, 2024, 2025, 2026
Part: Key

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Video tutorial

As shown in this tutorial, replacing the remote battery in the Audi A3 is an extremely simple and quick task. You will need a replacement CR2032 battery and, if necessary, a small flat-head screwdriver.

First, extract the emergency metal key by pressing the designated button, then unlock the rear cover by prying with the screwdriver in the indicated slot. Once done, you can remove the old battery, position the replacement ensuring the correct orientation, and reassemble everything.


Updated on 29 June 2026 by ScegliAuto


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Where is the Battery Located on the Toyota Hybrid Yaris?

Unlike many Toyota models, the Hybrid Yaris places the battery inside the vehicle. The battery of the Toyota Hybrid Yaris is located within the cabin, specifically under the right rear seat. If you need to access the battery, you must remove the rear seat, the screws securing the cover, and the hard plastic cover. Once these obstacles are removed, you can access the battery compartment and perform the necessary maintenance. Remember, if you need to disconnect the battery, always remove the positive terminal first, followed by the negative.

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