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How to Replace the Remote Battery on the Audi A3?

Model: Audi A3 MK 2, 8P - Years 2003-2013
Part: Key

To replace the remote battery on the Audi A3, lift the emergency key by pressing the appropriate button. Once the key is removed, use an object to lever off the cover on the back of the remote. Once this is removed, you can access the battery underneath and remove it from its housing. After removal, install a new battery and close it with the appropriate cover, reinserting the key into its slot.

Updated on 30 May 2026 by ScegliAuto

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