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How to Replace the Key Battery of the Citroen C4 Picasso

Model: Citroen C4 Picasso MK 2 - Years 2013-2022
Part: Key

In this mini guide, you will learn how to replace the button cell battery inside the smart key of the Citroen C4 Picasso Mk2 in a few simple steps. First, completely remove the physical emergency key. Once done, using a small flat-head screwdriver, remove the top part of the cover to access the battery. Remove the old battery and replace it with a new one. Finally, refit the top cover and reinsert the physical key.

Updated on 13 May 2026 by ScegliAuto

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