How to Open Your 2011 Mercedes-Benz GL550 Key Fob & Change Battery

If your Mercedes-Benz key is no longer unlock doors properly, the cell battery surely needs to be replaced. It's not difficult to replace the battery in your remote key fob with our guide. All tools, that you need is explained below.
What is the battery keyless entry remote use
Before you start to disassembly keyless entry remote make sure that you have all required tools and materials: two CR2025 batteries and flat head screwdriver.- flat head screwdriver
- 2xCR2025 batteries
Simple steps to replace the battery in your GL550's keyless entry remote
Inside of your remote key fob installed tiny button cell battery. Move the key out of the way if it is in the key fob.
Accurately try to disassemble your key fob with flat head screwdriver. Replace two CR2025 batteries with flat head screwdriver.
Replace 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 put battery wrong way.
Before assembling keyless entry fob's case, verify that everything is functioning by testing buttons on keyless entry remote.
At this point squeeze fob’s back cover together. Line your shell two halves together and put it in place by hands from top to bottom. Inspect your fob shell for gaps. If it is not firmly closed try to repeat last step.
Key Fob Battery Replacement 2011 Mercedes-Benz GL550 Video
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Still not working? Buy new one