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Replacing the Remote Battery of Audi A3

Model: Audi A3 MK 1, 8L - Years 1996-2003
Part: Key

Replacing the key of an Audi A3? Here’s how to disassemble the battery inside the remote key. Take your ignition key and press the button to release the key blade. Disconnect the part of the key connected to the key blade, separating the other piece in two halves. Remove the battery with a screwdriver (disassemble the circuit board if you need to change the key). Take a new battery and insert it into the key (of the same size and voltage). Reassemble all the plastic parts of the key. Check the correct functioning of the Audi A3 remote key.

Updated on 20 March 2026 by ScegliAuto

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