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Replacing the Key Remote Battery of the Audi A3

Model: Audi A3 8Y, MK 4 - Years 2020-2026
Part: Key

Briefly, here are the instructions to remove and replace the battery of the key remote for the Audi A3. First, take your remote and start by removing the physical key from inside it; use a lever on the gap created to remove the rear plastic cover, thus accessing the battery compartment, as shown in the video. At this point, remove the old battery and replace it with a new one of the correct type (in this case, a CR 2032 3V); insert it in the correct orientation and finally reinsert the physical key.

Posted on 15 April 2026 by ScegliAuto

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by ScegliAuto

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