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How to Replace the Key Fob Battery in a Mercedes A-Class?

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

To replace the battery in the key fob of a Mercedes A-Class, start by removing the black plastic panel on the back of the device. Once this cover is removed, you can slide out the side compartment of the key, which contains the battery. After removing the compartment, take out the old battery and replace it with a new one. Then, insert the new battery into the compartment, place it back into the key fob, and close it with the rear plastic panel.

Updated on 25 June 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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