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How to Replace the Key Battery on a BMW 1 Series

Model: BMW Serie 1 F21, MK 2, F20 - Years: 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019
Part: Key

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Video tutorial

Replacing the key battery on a BMW 1 Series model F20 is a straightforward task that you can do yourself. The first step is to press the button on the top of the remote to extract the emergency metal key. The second step is to insert a flathead screwdriver into the remote, applying slight pressure to open it. The third step is to remove the old battery and insert a new CR2450 battery.

The fourth step is to close the remote and reinsert the key.


Updated on 6 October 2026 by ScegliAuto


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To remove the rear seat of a Hyundai Tucson, follow these steps. Start by moving the front seats to their most forward position to gain space. Next, locate the release lever on the underside of the rear seat, near the floor. Press this lever down while pulling the seat upwards to unlock it from the anchor pins. Once unlocked, tilt the seat upwards and forwards to remove it from its position. Repeat this process for both sides of the rear seat. Be careful of any electrical cables or components that may be connected to the seat during removal. Once the rear seat is removed, the disassembly is complete.

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by ScegliAuto

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