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How to Replace the Key Battery on the Audi A3

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

See other generations:
Video tutorial

To independently replace the small battery inside your latest generation Audi A3 key, read the following guide and apply the described procedure correctly. First, obtain a flat-head screwdriver and a new CR2032 battery, then use the screwdriver to remove the rear cover of the key. Next, locate and remove the exhausted battery.

Finally, replace it with the new battery and correctly reassemble the rear cover you previously removed.


Posted on 4 September 2026 by ScegliAuto


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How to Remove the Toll Tag Holder from the Car Windscreen

The toll tag holder is usually attached to the car windscreen to ensure that the toll tag functions immediately when passing through barriers. However, if you decide to remove the holder, you should follow this procedure: - Insert the toll tag into the holder; - Pull the holder inwards to detach it from the windscreen; you can use a glass scraper or a stiff plastic card to assist you; After removing the holder, it is essential to remove the adhesive from the windscreen. To remove the adhesive, we recommend using a solvent-based spray that will remove the glue without clouding the area.

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by ScegliAuto

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