How To Change Battery In Mercedes C300 Key Fob. First you need to identify which key you have. The battery type for your Mercedes-Benz key fob should always be CR 2025.
Pull on the bottom tab of the key away from the rest of the fob. Then you should see a small gap in the fob where the key was. It is very easy to do and you do not need an.
Get it as soon as.
After the key releases there will be a visible slot at the end of the key fob. Then move the key horizontally into the open slot and carefully lift the battery out of its compartment. Most newer models include a Chrome Key which only needs one CR 2025 battery. Put your key horizontally into the open slot.
