How to Replace the Battery in a 1998 Mercedes-Benz ML320 Key Fob

How to Replace the Battery in a 1998 Mercedes-Benz ML320 Key Fob

If your car key fob is no longer unlock doors perfectly, the cell battery likely needs to be changed. In this post, we walks you through how to open your car key fob and change your Mercedes-Benz key battery.

What type battery does 1998 Mercedes-Benz ML320 key fob required

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

Simple steps to replace the battery in your ML320's keyless entry remote

A tiny button cell battery installed inside the your key fob. Remove any internal key before you try to pry apart the keyless entry remote.

Accurately try to disassemble your keyless entry remote with pry tools. Remove 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 connect battery wrong way.

When the new batteries installed, verify remote key fob by pressing buttons. If everything is functioning, assemble your keyless entry fob's body in reverse order.

At this point squeeze fob’s back cover together. Line your case two halves together and assemble it together by hands from top to bottom. If your fob body tightly closed, we done. If not, repeat the last step.

Key Fob Battery Replacement 1998 Mercedes-Benz ML320 Video

How To Replace A 1998 - 2001 Mercedes Benz ML320 Key Fob Battery FCCID: KR 55

Still not working? Buy new one


Remote key fob of Mercedes-Benz ML320 require 2xCR2025 batteries. Price for CR2025 batteries are under $6 build upon the size packaging, brand and type you buy. You can take old battery to the store, to be sure.

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

Changing your remote key fob battery is simple to do in 1998 Mercedes-Benz ML320. Most of car manufacturers think of the customers and make a special hole for keyless entry remote open.

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

Remote key fob batteries in Mercedes-Benz ML320 should be changed once in 4 years, also this will vary based on frequency of use and battery quality. If your remote key fob reduced signal strength, you should change batteries before it stop working and make trouble for you.

These signs will warning you that it's probably time to change battery in your 1998 Mercedes-Benz ML320: key fob buttons not working, signal strength reduced, multiple clicks to unlock or lock doors required and low key battery indicator on dashboard.
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Fob Compatibility:

  1. FCC ID: KR 55
  2. Models: 1998-2003 Mercedes-Benz ML320