SAFE AND EASY - Mercedes Benz key fob battery replacement - DIY - 3 button
Quick video on popping open my Mercedes Benz key fob and replacing the battery. This is the three button remote but also works on the two button version exactly the same.
Grab the stuff (affiliate links that support the channel):
Battery @ https://amzn.to/3wzCsem
Screw driver @ https://amzn.to/3P2o9Fq