2004 Mercedes-Benz C280 Key Fob Battery Replacement Instructions

2004 Mercedes-Benz C280 Key Fob Battery Replacement Instructions

If your auto remote key fob is no longer unlock doors correct, the battery probably needs to be replaced. In this article, we outlined how to disassembly your key fob and replace your Mercedes-Benz key battery step by step.

What type battery does 2004 Mercedes-Benz C280 remote key fob required

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

Step by step guide

Inside of your key fob installed small button cell battery. Move the key out of the way if it is in the remote key fob.

Accurately try to open your key fob with flat head screwdriver. Remove CR2025 batteries with flat head screwdriver.

Replace old batteries with fresh 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.

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

At this point squeeze keyless entry fob's back cover together. Line your shell pieces together and put it in place by hands from top to bottom. Inspect your remote key fob case for gaps. If it is not tightly closed try to repeat last step.

Key Fob Battery Replacement 2004 Mercedes-Benz C280 Video

▶️HOW TO Mercedes Benz KeyFob Battery Replacement 2003 2004 2005 2009 2010 2012 ▶️ Ultimate Guide

Still not working? Buy new one

Frequently Asked Questions

Remote key fob of Mercedes-Benz C280 require 2xCR2025 batteries. Most CR2025 batteries are under $5 depending on the size packaging, type and brand you buy. You can take old battery to the store, to find a proper replacement.

Remote key fob in most of cases do not need to be reprogrammed after battery change. If your key fob not working, recheck new battery voltage. If it is not help, read user's manual or contact local dealer.

Yes, you can change battery in your 2004 Mercedes-Benz C280 remote key fob yourself. Most hard part is to open keyless entry fob's case. It's pretty easy with our instruction.

The price to replace the battery inside remote key fob is in range from $30 to as high as $500 depending on the make and the service station.

You should change batteries inside key fob of Mercedes-Benz C280 at least once in 4 years. The term of battery differ on their amount of use, operating conditions and quality. Lithium cells usually will last longer.

If your C280 signal strength reduced, need multiple clicks to unlock or lock doors, key fob buttons not working or has low key battery indicator on dashboard, in most cases battery replace in key fob required. Installed battery is discharged with a high probability, but if it's not fix, key fob replace or repair required.
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Other Mercedes-Benz Models:

Fob Compatibility:

  1. FCC ID: IYZ 3312
  2. Models: 2000-2006 Mercedes-Benz C280