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

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 key fob for a Mercedes A-Class is very simple. Take the key fob and slide the small lever on the bottom edge of the case.

This will unlock the metal key inside, allowing you to pull it out easily. Next, insert the tip of the key into the bottom edge of the fob, then into the empty cavity, apply slight pressure, and open the battery compartment.

Remove the old battery and replace it with the required model, which is a flat CR 2035 battery rated at 3V.


Updated on 3 July 2026 by ScegliAuto


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    Frequently Asked Questions

    • Classe A 2012-2018 - Why is my Mercedes A-Class W176 key not recognized? Read answer

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To reset the tyre pressure warning light on the Kia Niro EV, inflate the tyres until they reach the correct pressure value. This value is indicated on the sticker attached to the driver's door pillar. Once the tyres are inflated, turn on the instrument cluster to check that the warning light has completely disappeared from the display. If it is still present, you may need to drive for a few miles to ensure it disappears completely from the screen.

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by ScegliAuto

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