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How to Change the Key Battery in a Mercedes

Model: Mercedes Mercedes Various
Part: Key

When the battery in your Mercedes key is flat, you can replace it in a few simple steps. First, open the key by pressing the designated button. Once open, lever in the slot to remove the cover under the Mercedes logo. At this point, you will see the flat battery in its housing: extract it and proceed to insert the new battery, ensuring the code indicating the type matches. Once done, reposition the cover, close it with light pressure, and the replacement is complete.

Updated on 1 May 2026 by ScegliAuto

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