How To Open Mercedes Key To Change Battery. When you pull this latch the key will remove itself from its holder. We strongly recommend using a lithium battery like these one s as they last much longer.
Once youve removed the cover remove the exposed CR 2025 batteries. To replace the battery in your key fob pull the latch at the end of the key holder push your key horizontally into the open slot and then lift the battery. How to change mercedes key battery 2021.
To open a Smart Key fob take note of the latch at the end of the fob.
Take the battery compartment out. To replace the battery in your key fob pull the latch at the end of the key holder push your key horizontally into the open slot and then lift the battery. SmartKey Battery Replacement Steps. Pull until the key releases.
