How to Open Your 1997 Mercedes-Benz C230 Key Fob & Change Battery

How to Open Your 1997 Mercedes-Benz C230 Key Fob & Change Battery

If your Mercedes-Benz keyless entry remote isn't working properly, the battery more likely must to be changed. Below, we outlined how to disassembly your car keyless entry remote and replace your Mercedes-Benz key battery.

What is the battery keyless entry remote use

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

Simple steps to change the battery in your C230's keyless entry remote

A coin cell battery installed in the your remote key fob. Open key before you try to pry apart the keyless entry remote.

Carefully try to open your keyless entry remote with pry tools. Remove 2 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 will not work if you connect battery wrong way.

Before assembling keyless entry fob's case, make sure that all functions works by testing buttons on circuit board.

The last thing to do is put your cover back on fob. Accurately try to assemble the pieces together by hands from top to bottom. If your key shell tightly closed, we done. If not, repeat the last step.

How to change the battery video instruction

SOLVED - Mercedes Benz Keyfob Battery Replacement | Smart Key Fob Dead Batteries

Still not working? Buy new one

Frequently Asked Questions

Keyless entry remote of Mercedes-Benz C230 use 2xCR2025 batteries. Price for CR2025 batteries are under $4-6 depending on the size packaging, brand and type you buy. Take your old battery to the store, to be sure.

Often, after key battery change, reprogramming not required. Remote key fob reprogramming procedure often described in user's manual of your vehicle.

Yes, you can change battery in your 1997 Mercedes-Benz C230 keyless entry remote yourself. Most hard part is to open fob’s case. It's pretty easy with our instruction.

The price to replace the battery in fob can run anywhere $50-600 depending on the brand and the service pricing.

You should change batteries inside keyless entry remote of Mercedes-Benz C230 at least once in three or four years. The term of battery vary on frequency of use, quality and operating conditions. Lithium cells normally will last longer.

These signs will warn you that it's possible time to change battery in your Mercedes-Benz C230: low key battery indicator on dashboard, multiple clicks to unlock or lock doors required, signal strength reduced and you didn't change battery more than 4 years.
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Other Mercedes-Benz Models:

Fob Compatibility:

  1. FCC ID: KR 55
  2. Models: 1996-2005 Mercedes-Benz C230