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How to change the battery and the shell of the BMW 3 Series and 5 Series

Model: BMW Serie 3 G20 - Years: 2019, 2020, 2021, 2022, 2023, 2024, 2025, 2026
Part: Key

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Video tutorial

In this video, we will see how to change the battery and the key shell on the BMW Series 3 and Series 5: we remove the emergency key from the shell we want to change, then with a cutter we cut the outer side of the shell, because often the sides are glued, then with a flat screwdriver, we need to separate the two parts of the key: we remove the electronic part.

Keyless keys have a CR2032 battery, while normal keys have a VL2020 battery.

Having the new shell - which we may have found, for example, on eBay with the code 281676034337 at the price of 11.49 euros, free delivery - we position the electronic part, then we put the battery in place and finally we put back the emergency key.


Posted on 2 June 2025 by ScegliAuto


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by ScegliAuto

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