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How to Replace the Key Battery on a BMW 3 Series E90

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

If the key for your BMW 3 Series E90 (2005-2013) has stopped working and you want to know how to replace the battery, follow these steps carefully. First, remove the physical emergency key and use it to easily detach the rear cover of the remote.

Once done, locate the dead battery inside and remove it as well. Finally, insert the new button battery and correctly reattach the previously removed rear cover.


Updated on 24 July 2026 by ScegliAuto


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by ScegliAuto

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