Published On Mar 14, 2021
In this video, we show you how to change the battery in the BMW key fob. To replace your BMW Smart Key Battery, you will need a CR2450
But to replace your Comfort Access BMW Key Battery, you will need a CR2032 battery
If you have a BMW key that has a side indent, this means you have a rechargeable battery. Therefore, this battery charges when it is inserted in the ignition.
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