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How to Replace the Key Battery in a BMW 3 Series

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

In today's video, see how to replace the key battery in a BMW 3 Series from the mid-2010s. This tutorial also applies to other models from the Bavarian manufacturer with the same device. Start by extracting the metal key from its slot inside the key fob. At this point, open the casing and remove the key battery. Replace it with a similar type unit, then finish the job by testing the device for proper functionality. Finally, reassemble the remote in its slot. As you can see, this is a simple operation.

Updated on 27 June 2026 by ScegliAuto

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by ScegliAuto

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