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How to Replace the Key Fob Battery for BMW 3 Series

Model: BMW Serie 3 E91, E90, E92 - Years 2005-2013
Part: Key

This video tutorial shows the step-by-step procedure to replace the battery of the BMW 3 Series key fob. This procedure is simple and quick and is as follows: extract the integrated key, using the integrated key to lift the cover, once the cover is removed, you can access the battery, use something sharp to extract it, insert the new battery, and close it by pressing with your fingers. Once the key is closed, reinsert the integrated key, and the battery replacement of the key fob is complete. The battery is a CR2032.

Updated on 15 August 2026 by ScegliAuto

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