How To Open An Audi Key To Replace Battery. Httpsamznto3jGQGReIf you recently had some issues with your Citroen C3 Car ke. Key fobs are sealed tight to help durability and keep water from getting into the electronics and there isnt always an obvious way to open them up.

Your vehicles key fob battery may very well need to be replaced at some point. Key fobs are sealed tight to help durability and keep water from getting into the electronics and there isnt always an obvious way to open them up. Put a new battery in the back cover.
Pop up the back cover at the end of the keyfob.
In order to replace it follow the steps. No extra tools required. LED in the remote control key arrow in image on right side If you press a button briefly the LED blinks once. This will save you the expense of going to your dealership to change the battery when it runs flat or like mine.

