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

November 28th, 2018 by

Mercedes-Benz Key

If the battery of your Mercedes-Benz key fob is dying, you’ll want to know what to look for, and you’ll want to know how to replace it. Learn how to change the battery in your Mercedes-Benz key fob.

How to Replace Your Mercedes-Benz Key Fob Battery

So you’ve noticed that your Mercedes-Benz key fob battery needs replacement. Here’s the rundown as to how to replace your Mercedes-Benz key fob battery.

  • Determine Your Key Type: You may have either a Chrome Key or a Smart Key, and your key type impacts how the batteries ought to be changed.
  • Get the Right Batteries: A Smart Key needs two CR 2025 batteries. A new Chrome Key only needs one.
  • Smart Key: For the Smart Key, pull the latch at the end of the key holder, stick your key horizontally into the open slot, and lift the battery compartment out. Then, insert your batteries.
  • Chrome Key: When changing a Chrome Key battery, you’ll want to pull on the tab at the bottom, push the key into the narrow end of the slot to remove the cover, and replace the battery.

When Does My Mercedes-Benz Key Fob Battery Need to Be Replaced?

There are a few warning signs to keep in mind when it’s time to change the battery in your Mercedes-Benz key fob. Initial warning signs include:

  • You may notice that your C-Class or E-Class is difficult to start. If your vehicle takes several attempts to start, chances are your key fob battery needs to be replaced.
  • If you’re no longer able to lock or unlock your doors or set off the panic alarm, chances are your Mercedes-Benz key fob battery needs to be replaced.
  • If the warning sign on your dashboard indicates an issue with the charging system, the battery power in your key fob needs to be replaced.

Noticing any of these warning signs? You’ll want to be proactive and change the battery of your Mercedes-Benz key fob before you head to your favorite arts venue in Modesto, CA.

Explore Mercedes-Benz Service and Maintenance at Mercedes-Benz of Modesto

Need help replacing your key battery? Our Modesto service center will help you with your service needs. Feel free to contact us with any questions and make sure you check out our service specials before booking your appointment.


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