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How to Replace the Key Battery in a Citroen C3

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

How to change the battery of a Citroen C3 key? Let's see how to disassemble the C3 key battery. Take your remote key and, using a screwdriver, unscrew the tiny screw on the key cover, then remove the metal key and lever with a screwdriver between the two parts of the plastic key cover. Extract the worn battery, then take a new one of the same size and voltage. Reassemble the cover on your remote by pressing down until you hear it click into place. Finally, screw in the securing screw to complete the key assembly.

Updated on 11 April 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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