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How to Replace the Key Fob Battery for the Mercedes A-Class?

Model: Mercedes Classe A W176 - Years 2012-2018
Part: Key

To replace the battery in the Mercedes A-Class key fob, pull the key out from the bottom of the device. Once removed, use a tool to pry open the back cover of the key fob. Under this cover, you will find the battery that needs to be taken out and replaced with a new one. After installing the new battery, close the key fob by reinserting the cover and the key that was removed earlier.

Updated on 5 June 2026 by ScegliAuto

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