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7450 W. Orchid Lane, Chandler, AZ, 85226

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Phone Numbers:Sales Hours:
  • Mon - Fri9:00 AM - 7:00 PM
  • Sat9:00 AM - 6:00 PM
  • Sun11:00 AM - 5:00 PM
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  • Mon - Fri7:00 AM - 6:00 PM
  • Sat8:00 AM - 1:00 PM
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How to Change the Battery in Your Mercedes-Benz Key Fob

2020-MB-GLE-Parked

Does it seem like your Mercedes-Benz key fob battery is about to die? This can happen whether you drive a new or used Mercedes-Benz. After today, you’ll be able to recognize the warning signs of a dying battery and learn how to change the battery in your Mercedes-Benz key fob yourself.

When a Mercedes-Benz Key Fob Battery Needs Replacement

There are a few major signs to look for to tell when you should change the battery in your Mercedes-Benz key fob. Here are a few of the most common signs:

  • You may start to notice that your car is becoming more and more difficult to start as time goes on. If it takes several attempts or more than a couple of minutes to start your car, this is a common indicator that your key fob battery is significantly low.
  • If you can no longer lock or unlock your doors or set off the alarm using your key fob, that’s another sign that your battery needs a replacement.
  • Your dashboard might display a warning sign that indicates a problem with your charging system, which means your key fob is losing battery.

If you’re experiencing any of the warning signs above while traveling those Gilbert streets, make sure to take the necessary steps to change your Mercedes-Benz key fob battery to avoid any additional Mercedes-Benz service costs.

Replace Your Mercedes-Benz Key Fob Battery

If want to learn how to change the battery in your Mercedes-Benz key fob, we’ve created a list of simple steps to follow:

  • Determine Your Key Type: Whether you have a newer Chrome SmartKey® or an older SmartKey®, the key type will impact how the batteries will need to be 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 then place the battery inside.

Explore Mercedes-Benz Service Costs at Mercedes-Benz of Chandler

Need some assistance with replacing your Mercedes-Benz key fob battery? Our certified service technicians at Mercedes-Benz of Chandler can help you with any service or maintenance needs at an reasonable price. If you have any questions or need further help with the steps listed above, feel free to contact us! Before scheduling an appointment with our service center, make sure to check out our exclusive Mercedes-Benz of Chandler service specials.

Want to learn more about the Mercedes-Benz features and brand? Study up on your dashboard warning lights of find out who owns Mercedes-Benz today!

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7450 W. Orchid Lane • Chandler, AZ 85226

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Today's Hours:

Open Today! Sales: 9am-6pm

Open Today! Service: 8am-1pm

Open Today! Parts: 8am-1pm

Mercedes-Benz of Chandler 33.3252004, -111.9700597.