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How to Replace the Key Fob Battery on the Ford Mondeo MK4

Model: Ford Mondeo / Fusion MK 4 - Years 2014-2021
Part: Key

In this tutorial, you will learn how to dismantle and replace the battery of the key fob on the Ford Mondeo fourth generation in simple steps. First, take your key fob and start by removing the cover to separate it into two parts; use something thin to pry it open, as shown in the video. Next, remove the key and take out the inner cover to access the battery compartment; then remove the old battery and replace it with a new one of the correct type (in this case, a CR 2025 3V). Insert it correctly and reassemble everything!

Updated on 28 April 2026 by ScegliAuto

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by ScegliAuto

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