If your BMW gives you the warning message, “Remote Control: Replace Battery,” fear not, it’s easy to replace and does not require a trip to the dealership. On F generation BMW’s, the batteries are user replaceable and can be purchased anywhere.

Battery: CR2450 buy here
Tools required: flathead screwdriver
Install time: 30 seconds [laughs]

Step 1

Press the rectangular button on the back of your key fob and pull out the physical key. FIY, this key unlocks the tumbler on your driver’s door handle if the key battery dies. It can also be used to lock your glove box.

Step 2

Use the physical key to pry up on the hole to the right of the rectangular button. It requires some force, but be careful not to break the plastic.

Step 3

Remove the old battery. Unless you have long fingernails, you’ll need a flathead screwdriver to pry it out.

Step 4

Insert your new CR2450 battery with the positive side facing up.

Step 5

Reinstall the back cover and snap the physical key back in place. These batteries typically last around two years.

I’m not sure what the dealership charges for this, but it is certainly more than the $5 it will cost you to replace it yourself!

This blog contains affiliate links. If you purchase a product through my custom link, I will earn a small commission at no extra cost to you. Win!