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Reset Remote Key Battery Warning on Mercedes C-Class W205

Model: Mercedes Classe C W205 - Years 2014-2021
Part: Key

In this video tutorial, you will learn how to reset the low battery warning message for the remote key on a Mercedes C-Class W205 by replacing the remote battery. First, disassemble the remote by removing the key inside and prying open the sides to separate it into two parts, as shown in the video. This will give you access to the battery, which you will remove and replace with a new one. Insert the correct type of battery (in this case, a CR 2025 3V) in the proper orientation and reassemble everything. You will see that the low battery warning message on the dashboard will have disappeared!

Updated on 2 April 2026 by ScegliAuto

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by ScegliAuto

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