How To Replace The Battery In A BMW Key FOB

BMW Key Fob Battery Replacement

This might be the easiest BMW DIY you'll ever do. 

If your BMW is having trouble locking, unlocking, or even turning on, it's probably time to replace the battery located within the key fob. 

It's worth noting that this DIY works perfectly well for the rectangular key fob, and not the diamond-shaped FOB with the key sticking out of it. 

The only part you'll need for this repair is the CR2450 battery, the rest can be accomplished by using parts found in the key FOB itself. 

Watch the video for the full tutorial and technique, and click the link below to shop all BMW parts on our site. 

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Topics: BMW, Do-It-Yourself, Video

About the Author: Michael Roselli
Michael Roselli most recently comes from the automotive website Jalopnik, where he ran their video programming, but his love for cars and automotive culture stretches back much, much farther than that. He joined FCP Euro thanks to their humble roots, fearless leadership, recent success and more importantly—where they’re headed. He’ll be working hard to expand FCP Euro’s video programming, audience, and voice that’ll help propel the company to the next level. He also wrote this bio entirely in the third person and feels kinda weird about that.
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