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How to Replace the Key Battery on a Mercedes GLA

Model: Mercedes Gla W156, MK 1 - Years: 2013, 2014, 2015, 2016, 2017, 2018, 2019
Part: Key

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Video tutorial

This video demonstrates how to replace the key battery on a Mercedes GLA. The procedure is simple and takes little time. To replace the battery, first remove the key fob if present, then take out the physical key. After removing the key, insert it into its slot but angled to leverage the cover off. Once the cover is removed, you will have access to the battery; simply turn the key to remove it. Now insert the new battery, then replace the cover by pressing it down with your fingers to secure it, and reinsert the physical key into its slot.


Updated on 28 October 2026 by ScegliAuto


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by ScegliAuto

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