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How to Replace the Key Battery on the Peugeot 407

Model: Peugeot 407 MK 1 - Years 2004-2012
Part: Key

If you own a Peugeot 407 and want to learn how to replace the key battery, follow this guide closely and put the instructions into practice. First, use a small (or medium) flat screwdriver to carefully remove the rear cover. Once you have access to the exhausted button battery, proceed with the replacement, ensuring you insert a CR2032 battery. Finally, reassemble the rear cover, and the procedure is successfully completed.

Updated on 24 July 2026 by ScegliAuto

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