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How to Replace the Key Battery of a Citroen C3

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

How do you replace the key battery of a Citroen C3? Let's see in this video how to proceed in detail. Take your remote control and press the release button of the metal key. Once the metal key is open, use a screwdriver to pry between the gaps at both ends of the remote cover. Remove the worn battery and take a new one of the same size and voltage. Reassemble your remote control by pressing on both ends of the key cover until you hear it click into place. Check that it is functioning correctly.

Updated on 15 March 2026 by ScegliAuto

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If the lever that unlocks the bonnet of the Renault Megane is broken or not functioning, there is an emergency procedure to unlock the mechanism: remove the right front grille located at the top of the bumper. Once the grille is removed, you can locate the actuator mechanism: by pulling the spring in this position, you can unlock the actuator, allowing you to lift the bonnet and access the components located inside the engine compartment. You can then close the bonnet simply by lowering it.

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