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How to Replace the Key Battery on the Peugeot 407

Model: Peugeot 407 MK 1 - Years: 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012
Part: Key

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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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by ScegliAuto

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