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

Mercedes-Benz Key Fob on Table


Is the battery of your Mercedes-Benz key fob dying? If so, you can turn to the expert technicians at the Mercedes-Benz of Lynnwood service center to help fix your key fob issues. Read this guide to find out all of the warning signs that indicate a dying Mercedes-Benz key fob battery. We’ll also cover how to change the battery in your Mercedes-Benz key fob right at home in Everett!



How to Know When Your Mercedes-Benz Key Fob Battery Needs to be Replaced

There are several warning signs you should take heed to when you think it might be time for a Mercedes-Benz key fob battery replacement. These indicator include: 

  • Difficult Starting Your Vehicle–If your car takes several minutes or multiple attempts to start, this can mean that your Mercedes-Benz key fob battery is low. 
  • Inability to Lock/Start Your Mercedes-Benz–If you’re running errands around Edmonds and you notice that you can’t lock and unlock your doors, or set off the panic alarm, it can also be a sign that your key fob battery is dying. 
  • Warning Sign on the Dashboard–If you notice a warning sign on your dashboard that indicates a charging system issue, this can mean that your Mercedes-Benz key fob battery is losing power. 

If you notice any of these warning signs, be proactive to change the battery in your Mercedes-Benz key fob to prevent further issues down the road. 

How to Replace Your Mercedes-Benz Key Fob Battery

If it’s time to change the battery in your Mercedes-Benz key fob, here are a few 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: 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.

Keep Your Mercedes-Benz in Excellent Condition with Mercedes-Benz of Lynnwood

Whether you need more guidance on how to change the battery in your Mercedes-Benz key fob, or you’d like to inquire about Mercedes-Benz service costs, contact us today! Or, schedule a service appointment online to have your Mercedes-Benz key, or other components, inspected by our service experts. Make sure to check out our service specials to secure a great deal on your Mercedes-Benz service costs.

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