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How to Replace the Battery in Mercedes Remote Key

Model: Mercedes Classe A W176 - Years 2012-2018
Part: Key

Replacing the battery in the remote key is the same for many Mercedes-Benz models and requires no tools. Start by locating the plastic lever on the back edge of the remote that holds the mechanical key in place. Slide the lever to the side and remove the key from its slot. Use the tip of the key to release the tab that secures the battery cover: right above the lever is a slot where you can insert the tip of the key to press and release the tab. Once the cover is removed, take out the battery (2025) and insert the new one, ensuring the polarity is correct. Then, reapply the cover and insert the key back into its slot.

Updated on 19 February 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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