How to Replace the Battery in a 2003 Mercedes-Benz G500 Key Fob

How to Replace the Battery in a 2003 Mercedes-Benz G500 Key Fob

Remote key fob grant access to your auto. If the keyless entry remote battery is weak you’ll not to be able open doors from distance. In this post, we explained how to open your car key fob and replace your Mercedes-Benz key battery step by step.

What kind of battery key fob use

Prior to disassembly keyless entry remote check all that you need: CR2025 batteries and flat head screwdriver.
  • flat head screwdriver
  • 2xCR2025 batteries

Simple steps to replace the battery in your car's remote key fob

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

Delicately try to open your keyless entry remote with flat head screwdriver. Replace 2 CR2025 batteries with flat head screwdriver.

Get new batteries and install it inside fob’s case. Battery must be installed with the same polarity as was an old. Your key will not work if you mistakenly put battery wrong way.

Before assembling keyless entry fob's case, check that all functions works by testing buttons on key fob.

The last thing to do is put your cover back on fob. Gently try to assemble the two halves together by hands from top to bottom. Inspect your keyless entry remote case for gaps. If it is not tightly closed try to repeat last step.

Key Fob Battery Replacement 2003 Mercedes-Benz G500 Video

Mercedes Benz Key Fob Case Change and Battery Replacement Remote

Still not working? Buy new one


Remote key fob of Mercedes-Benz G500 use 2xCR2025 batteries. Most CR2025 batteries are under $6 build upon the brand, type and size packaging you buy. Take your old battery to the store, to be sure.

Usually, after keyless entry remote battery change, you do not need to reprogram. Don't be scare of this procedure, because often it's described in user's manual.

Yes, you can replace battery in your 2003 Mercedes-Benz G500 keyless entry remote yourself. Most hard part is to open fob’s case. It's pretty easy with our guide.

Dealer service pricing for change the battery in key is $50-600 depending on the brand.

Remote key fob batteries in Mercedes-Benz G500 should be replaced every 4 years, but this will vary based on their amount of use and battery quality. If your key fob decreased signal strength, you should change batteries before it stop close doors and make trouble for you.

If your Mercedes-Benz need multiple clicks to unlock or lock doors, has low key battery indicator on dashboard, key fob buttons not working or signal strength reduced, in most cases battery change in key fob required. Currently installed battery is discharged with a high probability, but if it's not help to fix issues, key fob change or repair needed.
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Fob Compatibility:

  1. FCC ID: IYZ 3312
  2. Models: 2002-2005 Mercedes-Benz G500