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

Model: Ford Mondeo / Fusion MK 4 - Years: 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021
Part: Key

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Video tutorial

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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The toll tag holder is usually attached to the car windscreen to ensure that the toll tag functions immediately when passing through barriers. However, if you decide to remove the holder, you should follow this procedure: - Insert the toll tag into the holder; - Pull the holder inwards to detach it from the windscreen; you can use a glass scraper or a stiff plastic card to assist you; After removing the holder, it is essential to remove the adhesive from the windscreen. To remove the adhesive, we recommend using a solvent-based spray that will remove the glue without clouding the area.

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by ScegliAuto

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