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How to Replace the Key Battery in a Mercedes A-Class W176

Model: Mercedes Classe A W176 - Years: 2012, 2013, 2014, 2015, 2016, 2017, 2018
Part: Key

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Video tutorial

If you do not know how to correctly replace the small battery inside your Mercedes A-Class W176 key, just read the following guide and follow all the steps described. First, you need to purchase a new button battery of the same model as the one in the key, identified by the code CR2032. Next, remove the back cover of the key and locate the dead battery.

Finally, remove it and replace it with the new battery.


Updated on 5 November 2026 by ScegliAuto


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