How to Replace the Battery in a 2005 Mercedes-Benz CLK500 Key Fob

How to Replace the Battery in a 2005 Mercedes-Benz CLK500 Key Fob

Key fob grant easy access to your auto. When the keyless entry remote battery is discharged you’ll not to be able close doors from distance. Yes, it is possible to change the battery in your remote key fob, and it’s easier than you think. All tools, that you need is explained in this post.

What size battery does 2005 Mercedes-Benz CLK500 keyless entry remote required

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

Simple steps to replace the battery in your car's key fob

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

Accurately try to pry apart your key with flat head screwdriver. Remove 2xCR2025 batteries with flat head screwdriver.

Change old batteries with fresh one CR2025. Battery must be placed with the same position as was a previous. Your remote key fob will not work if you by mistake put battery wrong way.

Before assembling fob’s case, check that everything is functioning by testing buttons on circuit board.

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

How to replace the battery video guide

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

Still not working? Buy new one


Key fob of Mercedes-Benz CLK500 use 2xCR2025 batteries. Most CR2025 batteries are under $4-6 build upon the brand, size packaging and type you buy. You can take old battery to the store, with you to find a proper replacement.

Keyless entry remote in most of cases do not need to be reprogrammed 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 remote key fob battery is easy to do in 2005 Mercedes-Benz CLK500. Most of car manufacturers think of the customers and make a special hole for key fob open.

Auto repair shop's pricing for replace the battery in key is $50-600 depending on the make.

Key fob batteries in Mercedes-Benz CLK500 should be replaced once in four years, although this will differ based on usage and quality. If your keyless entry remote decreased signal strength, you should replace batteries before it stop open doors and make problems for you.

These symptoms will warning you that it's probably time to change battery in your 2005 Mercedes-Benz CLK500: low key battery indicator on dashboard, signal strength reduced, multiple clicks to unlock or lock doors required and you didn't change battery more than 4 years.
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Other Mercedes-Benz Models:

Fob Compatibility:

  2. Models: 2003-2006 Mercedes-Benz CLK500