2007 Mercedes-Benz CLS550 Key Fob Battery Replacement Guide

2007 Mercedes-Benz CLS550 Key Fob Battery Replacement Guide

Keyless entry remote grant access to your car. Once the key fob battery is weak you’ll not to be able close trunk or doors remotely. It's not complicated to replace the battery in your remote key fob, and it’s easier than you think. All tools, that you need is outlined below.

What size battery does 2007 Mercedes-Benz CLS550 remote key fob required

Replacing batteries in remote key fob require 2xCR2025 batteries and flat head screwdriver. Prepare these materials and tools before opening and make sure to match the type of your fob’s batteries.
  • 2xCR2025 batteries
  • flat head screwdriver

Simple steps to change the battery in your CLS550's remote key fob

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

Carefully try to disassemble your key with pry tools. Replace two CR2025 batteries with flat head screwdriver.

Get new batteries and install it inside keyless entry fob's shell. Be sure to connect the battery the right way around in a circuit. Your key will not work if you put battery wrong way.

After the new batteries installed, verify remote key fob by pressing buttons. If all functions works, assemble your keyless entry fob's body in reverse order.

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

Key Fob Battery Replacement 2007 Mercedes-Benz CLS550 Video

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 CLS550 require 2xCR2025 batteries. Price for CR2025 batteries are under $6 build upon the brand, type and size packaging you buy. Take your old battery to the store, to be sure.

Keyless entry remote in most of cases do not require to be reprogrammed after battery change. If your remote key fob not working, recheck new battery voltage. Otherwise, read user's manual or contact local dealer.

Yes, you can change battery in your 2007 Mercedes-Benz CLS550 key yourself. Most difficult part is to open keyless entry fob's case. It's pretty easy with our guide.

Auto repair shop's price for change the battery in key fob is from $30 to as high as $500 depending on the brand.

You should replace batteries inside remote key fob of Mercedes-Benz CLS550 at least once in 4 years. The lifetime of battery vary on usage time, operating conditions and quality.

These signs will warn you that it's possible time to replace battery in your 2007 Mercedes-Benz CLS550: low key battery indicator on dashboard, signal strength reduced, key fob buttons not working and you didn't change battery more than 4 years.
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Other Mercedes-Benz Models:

Fob Compatibility:

  1. FCC ID: KR55WK49031
  2. Models: 2007-2008 Mercedes-Benz CLS550