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How to Replace the Key Battery of the BMW 2 Series

Model: BMW Serie 2 F45 - Years 2014-2021
Part: Key

If you own a BMW 2 Series and want to learn how to replace the battery in your key, just read this guide carefully and follow the instructions provided. First, pull out the emergency key by pulling the metal part of the cover outward. Next, use the same emergency key to remove the rear cover and access the dead battery. Finally, remove the old battery and insert the new one. Reassemble everything, and you are done.

Updated on 12 June 2026 by ScegliAuto

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