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

Is the battery of your Mercedes-Benz key fob on its last legs? You can rely on the experts at our Mercedes-Benz service center to help you fix your key fob issues! Today, we will teach you the warning signs to look for in a dying battery and the steps to replace it yourself. 

When a Mercedes-Benz Key Fob Battery Needs Replacement

There are several warning signs you can look for when you think it might be time to change the battery in your Mercedes-Benz key fob. Initial warnings can include:

• You may notice your vehicle becomes more difficult to start. If it takes several minutes or multiple attempts, that can be an indicator of a low battery.
• If you lose the ability to lock and unlock your doors or set off the panic alarm that can also be a sign your battery is on the way out. 
• If you notice a warning sign on your dashboard that indicates an issue with the charging system, that can mean you are losing battery power in your key fob. 

If you experience any of these warning signs take the proactive step to change the battery in your Mercedes-Benz key fob to prevent further issues when on the road in Phoenix. 

Replace Your Mercedes-Benz Key Fob Battery

When it comes time to change the battery in your Mercedes-Benz key fob, 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 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 iAUTOHAUS

Need help replacing your key battery? Our Tempe service center can help you with all your service needs at a reasonable price. Feel free tocontact us with any questions and make sure you check out our service specialsbefore booking your appointment.