How To Change Your Key Fob Battery. A key fob doesnt need any programming if only a fob battery is replaced. Generally all you need to open up your key fob is a strong fingernail.
Now carefully remove it from the key with the help of a screwdriver or anything small in size. We checked with several dealers and the prices we got were within 10. Write down the battery size and type and make a note of which side is facing up.
Replacing a SmartKey Mercedes-Benz Key Fob Battery To replace the battery in an older key fob first pull the latch at the end of the keyholder.
Please refer to your owners manual for advice on how to change your keyless remote battery. The newer Chrome SmartKey calls for one CR 2025 battery while the older SmartKey calls for two. Now carefully remove those four tiny screws from the base. Press and hold the Unlock button on your key fob for about 10 seconds.
