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Remote Key Battery Replacement

Model: Citroen C3 FC, FN - Years 2002-2009
Part: Key

Using a small flat screwdriver, open the two halves of the remote by prising apart at the small slot located at the back, where the keyring holder may be found. Then, extract the old battery by sliding it out of its holder, remove any oxidation residues with contact spray, and insert the new one, ensuring the polarity is correct and that the voltage of the new battery matches that of the old one. Finally, close the halves securely and check the operation of both buttons.

Updated on 5 February 2026 by ScegliAuto

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