Master the Technique A Guide to Replacing Your Mercedes Keyless Entry Battery

Learn about the warning signs of a dying battery and how to replace the battery in your Mercedes-Benz key fob if needed. The keyless entry battery only last 7 to 10 months, and that's what we experienced. It drains battery so fast! New Model Chrome SmartKey®: Pull the tab at the bottom of the fob and remove the cover by pushing the key into the skinnier end of the slot. Then, carefully ... Easy Mercedes key fob battery replacement. Play Archived post. New comments cannot be posted and votes cannot be cast. I bought from Costco 10 CR2032 batteries for $9.99. In the owner's manual there are the same instructions for changing the battery. To unlock the door, remove the metal blade key from your Mercedes-Benz key fob. Use it to manually unlock your Mercedes-Benz. Fair warning, the alarm will go ... After removing and disposing of the old battery, place your new battery in the same spot, and make sure the new battery is facing the correct way. And it's actually pretty easy. So I'm going to flip the key fob around and I'm going to slide this little black piece to the left. And that will ... Signs a Mercedes-Benz Key Fob Battery Needs Replacement · It takes multiple attempts or several minutes to start your vehicle · You lose the ability to lock and ... Follow the steps below to change the battery in your Mercedes-Benz key fob and avoid more problems down the road.