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How to replace the remote battery for the BMW 3 Series?

Model: BMW Serie 3 F30, F31 - Years 2012-2019
Part: Key

As shown in this tutorial, replacing the remote battery for the BMW 3 Series is an extremely simple and quick operation. To do this, you will need a replacement battery of type CR2450 and, if necessary, a small flathead screwdriver. First, extract the emergency key by pressing the designated button, then pry in the indicated slot to unlock the rear cover. Once this is done, you can remove the old battery, insert the replacement while ensuring the correct orientation, and reassemble everything.

Updated on 2 July 2026 by ScegliAuto

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