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

Model: Mercedes Classe A W177 - Years: 2018, 2019, 2020, 2021, 2022, 2023, 2024, 2025, 2026
Part: Key

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Video tutorial

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 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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