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Replacing the key fob battery for the Mercedes E-Class

Model: Mercedes Classe E W213 - Years: 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023
Part: Checks and maintenance

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Video tutorial

The batteries in the key fob that unlocks the doors of the Mercedes E-Class will eventually run out and need to be replaced. Near the key ring, you will find a small sliding button that, when pressed, allows you to unlock and remove the emergency key. Insert a small screwdriver into the space that has opened up and extract the holder where the two batteries are housed.

Remove the old batteries and replace them with two new CR2025 batteries, making sure to install them with the positive side facing up. Reinsert the holder back into the key fob and insert the blade into its housing.


Updated on 24 September 2026 by ScegliAuto


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by ScegliAuto

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