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How to Replace the Key Battery in a Renault Megane 4

Model: Renault Megane Megane 4, Megane IV - Years 2015-2023
Part: Key

In this new mini guide, you will discover how to correctly replace the battery in the key of the Renault Megane Mk4. This is a very simple method that can be performed by anyone independently. First, pull off the top part of the cover (with the Renault logo) by applying slight force with your hands. Next, remove the protective cap and take out the old button cell battery located just underneath. At this point, replace it with a new battery and finally, correctly reassemble the components removed earlier.

Updated on 11 May 2026 by ScegliAuto

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