How to Change the Battery in a Mercedes-Benz Key Fob

Mercedes-Benz Key Fob on Table

If your Mercedes-Benz key fob is running on its last legs, you can trust the experts at our Alpharetta service center to help fix the Mercedes-Benz key fob battery issue. The team at RBM of Alpharetta has your guide to the warning signs of a dying battery and the steps needed to replace it at home. Don’t hesitate to reach out to our  service or parts departments if you have any questions along the way.


Replacing a Mercedes-Benz Key Fob Battery

There are multiple warning signs to watch out for when it’s time to change the Mercedes-Benz key fob battery. These warnings can include:

  • Your vehicle is becoming more difficult to start, which includes taking several minutes or multiple attempts to start.
  • If you are unable to lock and unlock your doors or set off the panic alarm.
  • If you notice a warning sign on your dashboard indicating there’s an issue with the charging system.

If you begin experiencing any of the above warning signs, don’t hesitate to reach out to our parts department to help you find a replacement. It’s essential to have any issues taken care of right away to prevent further issues down the road.


Mercedes-Benz Key Fob Battery Replacement Tips

When you need to change the battery in your Mercedes-Benz key fob at home near Atlanta, there are a few simple steps to follow:

  • Determine Your Key Type: Whether you have a newer Chrome SmartKey® or an older SmartKey®, the key type impacts how the batteries are changed.
  • Get the Right Batteries: The newer Chrome SmartKey® calls for one CR 2025 battery while the older SmartKey® calls for two.
  • SmartKey® for Older Models: 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 out of the compartment.
  • Chrome SmartKey® for Newer Models: Pull the tab at the bottom, remove the cover by pushing the key into the narrow end of the slot, and then place the battery inside.

Explore Mercedes-Benz Service Costs at RBM of Alpharetta

If you need assistance with how to change the battery in a Mercedes-Benz key fob, don’t hesitate to visit our service center near Cumming. Our team of factory-trained technicians is standing by to fix the issue, and you back out on the roads. Contact us with any questions!


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Main 678-637-2333
345 McFarland Parkway
Alpharetta, GA 30004
RBM of Alpharetta 34.1357528, -84.2404739.