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

Model: Mercedes Classe A W177 - Years 2018-2026
Part: Key

In this video tutorial, you can see how to replace the battery in the key fob for the Mercedes A-Class. The same procedure applies to other models like the B-Class and other relatively recent versions. First, take the key in one hand and remove the manual key. To do this, press the release button and pull out the manual key. Now, take a flathead screwdriver and insert the tip into the slot where you removed the manual key. Press on the clip, and the cover can be lifted. Next, simply flip the key fob over to remove the battery. Replace the battery with a new working model: CR2025. Finally, reassemble the key fob in reverse order.

Updated on 20 June 2026 by ScegliAuto

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How to Replace the External Wing Mirror on a Ford C MAX

In the event of a breakage, it will be necessary to replace the external wing mirror on the 2011 Ford C MAX. This operation is easily performed independently. Start by removing the internal cover of the mirror with a plastic lever. Then, use a socket wrench to remove the securing pins. Once the pins are removed, you can take off the mirror, but not before disconnecting the power connectors. Then proceed to fit the new mirror. First, connect the connectors and then secure the mirror to its housing with the pins. Refit the plastic cover and test the operation of the electric mirror using the controls.

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by ScegliAuto

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