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How to Replace the Key Fob Battery of a BMW 1 Series

Model: BMW Serie 1 MK 3, F40 - Years 2019-2026
Part: Key

Today, you will see the instructions that will allow you to disassemble and replace the battery of the key fob for a BMW 1 Series. First, take your key fob and start by removing the physical key from inside it; use the slot created to pry off the rear cover, thus accessing the battery compartment, as shown in the video. At this point, remove the battery and replace it with a new one of the correct type (in this case, a CR 2032 3V); insert it in the correct orientation and reassemble the other parts of the key, testing its functionality!

Posted on 4 April 2026 by ScegliAuto

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