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How to Replace the Key Fob Battery for the BMW 5 Series?

Model: BMW Serie 5 F11, F10 - Years 2010-2017
Part: Key

Replacing the key fob battery for the BMW 5 Series, as shown in this tutorial, is an extremely simple and quick task. To do this, you will need a small flathead screwdriver and a replacement CR2450 battery. First, press the button on the back and pull out the emergency key, then pry open the cover along the indicated slot. Once fully opened, remove the old battery, insert the replacement battery making sure to observe the polarity, and reassemble everything by following the reverse procedure.

Updated on 23 June 2026 by ScegliAuto

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