How to Open Your 2004 Mercedes-Benz C200 Key Fob & Change Battery

How to Open Your 2004 Mercedes-Benz C200 Key Fob & Change Battery

If your car remote key fob isn't unlock doors well, the cell battery most likely must to be replaced. Below, you’ll benefit from knowing how to disassembly Mercedes-Benz remote key fob and change a weak battery DIY. If you decide to do it at home near C200, use this guide, but don't forget to check tools and materials required before you start.

What type battery does 2004 Mercedes-Benz C200 remote key fob take

Changing batteries in remote key fob require 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

Step by step guide

A small button cell battery installed in the your remote key fob. Remove any internal key first, and then try to pry apart the remote key fob.

Carefully try to open your fob with flat head screwdriver. Change 2xCR2025 batteries with flat head screwdriver.

Now it's time to install new batteries in fob’s shell. Every battery has a negative and positive side and if you put the wrong connector down, the current cannot go into your circuit board and make it work. Check position on battery, by "+" mark.

After the new batteries installed, verify key fob functionality by pressing buttons. If everything working properly, assemble your fob’s body in reverse order.

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

How to replace the battery video instruction

Mercedes key battery change

Still not working? Buy new one

Frequently Asked Questions

Keyless entry remote of Mercedes-Benz C200 use 2xCR2025 batteries. Price for CR2025 batteries are under $5 depending on the brand, size packaging and type you buy. Take your old battery to the store, to be sure.

Key fob in most of cases reprogramming not required after battery change. If your keyless entry remote not working, recheck new battery voltage. If it is not help, read user's manual or contact local dealer.

Replacing your key fob battery is simple to do in 2004 Mercedes-Benz C200. Most of car manufacturers think about clients and make a special hole for keyless entry remote open.

The cost to replace the battery inside remote key fob is in range $50-600 depending on the car and the service station.

You should replace batteries inside remote key fob of modern cars at least every 4 years. The lifetime of battery differ on frequency of use, operating conditions and quality.

These symptoms will warn you that it's possible time to replace battery in your Mercedes-Benz C200: you didn't change battery more than 4 years, signal strength reduced, low key battery indicator on dashboard and key fob buttons not working.
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Other Mercedes-Benz Models:

Fob Compatibility:

  1. FCC ID: IYZ VECTOR
  2. Models: 2001-2004 Mercedes-Benz C200