How to Replace the Battery in a 2010 Mercedes-Benz GL450 Key Fob

How to Replace the Battery in a 2010 Mercedes-Benz GL450 Key Fob

Remote key fob allow access to your car. Once the remote key fob battery is discharged you’ll lose your keyless entry fob's ability to control distance functions. In this article, we outlined how to open your key fob and replace your Mercedes-Benz key battery.

What size battery does 2010 Mercedes-Benz GL450 key fob take

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

Simple steps to replace the battery in your GL450's keyless entry remote

A small coin cell battery installed in the your key fob. Move the key out of the way if it is in the keyless entry remote.

Carefully try to open your remote key fob with pry tools. Remove two CR2025 batteries with flat head screwdriver.

Change old batteries with new one CR2025. Be sure to connect the battery the right way around in a circuit. Your key fob will not work if you place battery wrong way.

Before assembling fob’s case, check that everything working properly by testing buttons on circuit board.

At this point squeeze fob’s back cover together. Line your body two halves together and put it in place by hands from top to bottom. Check your fob shell for gaps. If it is not firmly closed try to repeat last step.

Video of key disassembly

Mercedes Benz Keyfob Battery Replacement SmartKey Keyless Easy to do

Still not working? Buy new one


Key fob of Mercedes-Benz GL450 require 2xCR2025 batteries. Price for CR2025 batteries are under $5 build upon the size packaging, type and brand you buy. Take your old battery to the store, to be sure.

Usually, after key battery change, reprogramming not required. Don't be scare of this procedure, because often it's described in user's manual.

Yes, you can replace battery in your 2010 Mercedes-Benz GL450 key fob yourself. Most hard part is to open keyless entry fob's case. It's pretty simple with our guide.

Dealer service cost for replace the battery in fob is from $30 to as high as $500 depending on the brand.

You should change batteries inside keyless entry remote of modern cars at least once in three years. lifespan of battery vary on their amount of use, quality and operating conditions.

These symptoms will warning you that it's perhaps time to change battery in your 2010 Mercedes-Benz GL450: signal strength reduced, multiple clicks to unlock or lock doors required, low key battery indicator on dashboard and you didn't change battery more than 4 years.
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Fob Compatibility:

  1. FCC ID: IYZ3317
  2. Models: 2007-2012 Mercedes-Benz GL450