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

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

Replacing the battery of the BMW 3 Series remote, as shown in this tutorial, is an extremely simple and quick operation. For this, you will need a small flathead screwdriver and a replacement CR2032 battery. First, extract the emergency metal key by pressing the designated button, then insert the screwdriver into the indicated slot, pry it open, and unlock the rear cover. At this point, remove the old battery, insert the replacement while respecting the polarity, and reassemble everything by following the reverse procedure.

Updated on 3 September 2026 by ScegliAuto

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