How to Open Your 2008 Mercedes-Benz E280 Key Fob & Change Battery

How to Open Your 2008 Mercedes-Benz E280 Key Fob & Change Battery

If your E280 key fob isn't unlock doors correct, the battery most likely needs to be replaced. In this article, we outlined how to disassembly your keyless entry remote and change your Mercedes-Benz key battery step by step.

What type battery key fob use

Before beginning disassembly remote key fob be sure that you have all recommended tools and materials: flat head screwdriver and 2 CR2025 batteries.
  • 2xCR2025 batteries
  • flat head screwdriver

Step by step guide

A small button cell battery installed inside the your keyless entry remote. Move the key out of the way if it is in the keyless entry remote.

Accurately try to open your key fob with flat head screwdriver. Remove 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 remote key fob will not work if you put battery wrong way.

When the new batteries installed, check key fob functionality by pressing buttons. If all functions works, assemble your keyless entry fob's case in reverse order.

The last thing to do is put your cover back on fob. Carefully try to assemble the pieces together by hands from top to bottom. Inspect your key case for gaps. If it is not tightly closed try to repeat last step.

How to change the battery video guide

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

Still not working? Buy new one

FAQ

Key fob of Mercedes-Benz E280 use 2xCR2025 batteries. Price for CR2025 batteries are under $6 build upon the size packaging, type and brand you buy. You can take old battery to the store, with you to find a proper replacement.

Often, after key battery change, reprogramming not required. Don't be scare of this procedure, because often it's described in user's manual.

Yes, you can replace battery in your 2008 Mercedes-Benz E280 keyless entry remote yourself. Most difficult part is to open keyless entry fob's case. It's pretty simple with our guide.

Car service pricing for replace the battery in key fob is from $30 to as high as $500 depending on the brand.

Remote key fob batteries in Mercedes-Benz E280 should be changed every three or four years, also this will vary based on usage and battery quality. If your remote key fob shortened signal strength, you should change batteries before it stop close doors and make problems for you.

If your E280 signal strength reduced, has low key battery indicator on dashboard, key fob buttons not working or need multiple clicks to unlock or lock doors, it's probably battery change in remote key fob required. Installed battery is weak with a high probability, but if it's not fix problem, key fob replace or repair needed.
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Other Mercedes-Benz Models:

Fob Compatibility:

  1. FCC ID: IYZ3317
  2. Models: 2007-2009 Mercedes-Benz E280