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How to Replace the Key Fob Battery of the Mercedes-Benz A-Class?

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

Replacing the key fob battery of the Mercedes-Benz A-Class, as shown in this tutorial, is an extremely simple and quick task. To do this, you will only need a replacement CR2032 battery. First, remove the emergency key by pressing the button on the back, then pry off the plastic cover by pushing it outward. Once done, you can pull out the drawer where the battery is located and proceed with its replacement, making sure to respect the polarity. Finally, reassemble everything by following the reverse procedure.

Updated on 8 August 2026 by ScegliAuto

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How to Open a Stuck Boot on the Peugeot 407?

On the Peugeot 407, the boot may become stuck, possibly due to a problem with the control button or the lock actuator. In such cases, you can perform an emergency opening by following the simple procedure shown in this tutorial. First, open the rear doors, then lower the seat back by operating the release lever. Next, go inside the boot, locate the lock, and manually operate it using a flathead screwdriver. The boot will then be free to open.

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