Changing your battery in your F-Series BMW Key Fob is easy. Just follow these 5 steps:
1) Press the button and pull out the car key in the direction as indicated by the arrow:
2) Notice the notch at the key fob:
3) Using the same car key, push into the notch and lift the plastic cover up:
4) Slowly lift the plastic cover with your fingers:
5) Presto! Your key fob has been disassembled, exposing the CR 2032 battery. Time to source for a good CR2032 battery and swap it in!