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How to Replace the Battery in a Mercedes Remote?

Model: Mercedes Mercedes Various
Part: Key

This tutorial shows you how to replace the battery in a Mercedes remote, provided with most models from the German manufacturer. For this, you will need a replacement CR2032 battery and, optionally, a small flathead screwdriver. First, remove the emergency metal key using the designated button on the top edge. Next, use the key itself or the screwdriver to pry open the indicated slot and access the rear cover. Finally, proceed with replacing the battery, ensuring you respect the polarity.

Updated on 11 May 2026 by ScegliAuto

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