How to Replace the Battery in a 2012 Mercedes-Benz GL550 Key Fob

How to Replace the Battery in a 2012 Mercedes-Benz GL550 Key Fob

If your Mercedes-Benz key fob isn't working properly, the cell battery surely must to be changed. In this post, we outlined how to open your car key fob and change your Mercedes-Benz key battery step by step.

What type battery does 2012 Mercedes-Benz GL550 remote key fob required

Changing batteries in key fob require 2xCR2025 batteries and flat head screwdriver. Prepare these materials and tools before opening and make sure to match the size of your keyless entry fob's batteries.
  • 2xCR2025 batteries
  • flat head screwdriver

Step by step guide

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

Accurately try to open your remote key fob with hands or flat head screwdriver. Replace two CR2025 batteries with flat head screwdriver.

Now it's time to install new batteries inside fob’s shell. Battery must be placed with the same polarity as was an old. Your remote key fob will not work if you by mistake place battery wrong way.

After the new batteries installed, check key fob functionality by pressing buttons. If all functions works, assemble your keyless entry fob's shell in reverse order.

The last thing to do is put your cover back on fob. Accurately try to assemble the two halves in place by hands from top to bottom. Check your keyless entry remote shell for gaps. If it is not firmly closed try to repeat last step.

How to replace the battery video guide

Mercedes Benz Keyfob Battery Replacement SmartKey Keyless Easy to do

Still not working? Buy new one


Remote key fob of Mercedes-Benz GL550 use 2xCR2025 batteries. Most CR2025 batteries are under $4-6 build upon the type, brand and size packaging you buy. You can take old battery to the store, with you to find a proper replacement.

Keyless entry remote in most of cases reprogramming not required after battery replace. If your remote key fob not working, recheck new battery voltage. Otherwise, read user's manual or contact local dealer.

Replacing your keyless entry remote battery is simple to do in 2012 Mercedes-Benz GL550. Most of car manufacturers think about customers and make a special hole for remote key fob disassembly.

Auto repair shop's price for change the battery in key fob is from 50 to 600 dollars depending on the make.

You should replace batteries inside keyless entry remote of modern cars at least once in 3-4 years. lifespan of battery vary on their amount of use, quality and operating conditions.

These symptoms will warn you that it's possible time to replace battery in your 2012 Mercedes-Benz GL550: you didn't change battery more than 4 years, key fob buttons not working, signal strength reduced and multiple clicks to unlock or lock doors required.
Be the first to comment.
Your message is required.

Other Mercedes-Benz Models:

Fob Compatibility:

  1. FCC ID: IYZ3317
  2. Models: 2008-2012 Mercedes-Benz GL550