How to Replace the Battery in a 2010 Mercedes-Benz R350 Key Fob

How to Replace the Battery in a 2010 Mercedes-Benz R350 Key Fob

If your Mercedes-Benz key fob isn't unlock doors well, the battery likely must to be changed. Below, we described how to disassembly your keyless entry remote and replace your Mercedes-Benz key battery.

What type battery does 2010 Mercedes-Benz R350 keyless entry remote required

Changing batteries in remote key fob require flat head screwdriver and 2 CR2025 batteries. Prepare these materials and tools before opening and make sure to match the type of your fob’s batteries.
  • 2xCR2025 batteries
  • flat head screwdriver

Step by step instruction

A tiny coin battery installed inside the your keyless entry remote. Move the key out of the way if it is in the keyless entry remote.

Delicately try to open your fob with pry tools. Replace two CR2025 batteries with flat head screwdriver.

Get new batteries and install it in fob’s shell. Be sure to connect the battery the right way around in a circuit. Your keyless entry remote will not work if you put battery wrong way.

Before assembling fob’s case, verify that everything working fine by pressing buttons on remote key fob.

The last thing to do is put your cover back on fob. Delicately try to put the pieces in place by hands from top to bottom. Check your remote key fob case for gaps. If it is not tightly closed try to repeat last step.

Video of key opening

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Frequently Asked Questions

Remote key fob of Mercedes-Benz R350 require 2xCR2025 batteries. Price for CR2025 batteries are under $4 depending on the type, brand and size packaging you buy. You can take old battery to the store, with you to find a proper replacement.

Often, after keyless entry remote battery change, reprogramming not required. Keyless entry remote reprogramming procedure often described in user's manual of your vehicle.

Yes, you can replace battery in your 2010 Mercedes-Benz R350 keyless entry remote yourself. Most hard part is to open fob’s case. It's pretty easy with our step by step guide.

The cost to change the battery in key fob can run anywhere $50-600 depending on the make and the service pricing.

Keyless entry remote batteries in Mercedes-Benz R350 should be changed every 4 years, although this will vary based on frequency of use and build quality. If your keyless entry remote reduced signal strength, you should replace batteries before it stop open doors and make problems for you.

These symptoms will warn you that it's perhaps time to replace battery in your Mercedes-Benz R350: key fob buttons not working, multiple clicks to unlock or lock doors required, signal strength reduced and low key battery indicator on dashboard.
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Fob Compatibility:

  1. FCC ID: IYZ3317
  2. Models: 2007-2012 Mercedes-Benz R350