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How to Replace the Battery in Mercedes Remote Key

Model: Mercedes Classe A W176 - Years: 2012, 2013, 2014, 2015, 2016, 2017, 2018
Part: Key

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Video tutorial

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 Reset the Tire Pressure Light on a MG ZS?

On the instrument cluster of the MG ZS, the tire pressure light that appears can be reset by inflating the tires to the correct pressure: this value will be indicated on the sticker attached to the driver's door pillar. Once the tires have been properly inflated, you can turn on the instrument cluster and navigate through the menu until you find the option that indicates tire pressure: if this screen shows the new values, the light will turn off; otherwise, you will need to drive for a few miles so that the sensors can read the new values and turn off the light afterward.

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by ScegliAuto

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