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Replacing the Key Fob Battery for BMW 3 Series

Model: BMW Serie 3 E92, E90, E91 - Years: 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013
Part: Key

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Video tutorial

This guide will show you how to remove and replace the battery in the key fob for the BMW 3 Series. First, take your key fob and remove the physical key from inside it. Then, use a flat tool to pry open the side slot of the fob to split it into two parts, giving you access to the circuit board and the battery, as shown in the video.

At this point, remove the old battery and replace it with a new one of the correct type and specification. Insert it in the correct orientation and snap the two halves of the fob back together!


Updated on 24 October 2026 by ScegliAuto


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by ScegliAuto

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