How to Open Your 2008 Mercedes-Benz CLK550 Key Fob and Change Battery

How to Open Your 2008 Mercedes-Benz CLK550 Key Fob and Change Battery

If your CLK550 key fob is not open doors perfectly, the battery probably must to be changed. Below, we explained how to open your car key fob and replace a discharged battery yourself. If you decide to do it at home near CLK550, use this guide, but first make sure you have all you need.

What is the battery keyless entry remote require

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

Simple steps to replace the battery in your CLK550's keyless entry remote

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

Delicately try to disassemble your remote key fob with pry tools. Replace two 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 key fob will not work if you connect battery wrong way.

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

The last thing to do is put your cover back on fob. Accurately try to put the pieces in place by hands from top to bottom. Inspect your fob shell for gaps. If it is not tightly closed try to repeat last step.

Video of key fob disassembly

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

Still not working? Buy new one


Key fob of Mercedes-Benz CLK550 use 2xCR2025 batteries. Most CR2025 batteries are under $4 build upon the type, size packaging and brand you buy. Take your old battery to the store, to find a proper replacement.

Often, after key fob battery replace, you do not need to reprogram. Key fob reprogramming procedure often described in user's manual of your vehicle.

Replacing your remote key fob battery is easy to do in 2008 Mercedes-Benz CLK550. Most of car manufacturers think of the clients and make a special hole for remote key fob disassembly.

Dealer service cost for replace the battery in remote key fob is from 50 to 600 dollars depending on the brand.

Remote key fob batteries in Mercedes-Benz CLK550 should be changed once in three or four years, but this will vary based on usage and quality. If your remote key fob reduced signal strength, you should replace batteries before it stop open doors and make trouble for you.

If your car fob's battery more than 4 years old, signal strength reduced, need multiple clicks to unlock or lock doors or key fob buttons not working, in most cases battery replace in key fob needed. Installed battery is dead or weak with a high probability, but if it's not help, keyless entry remote replace or repair needed.
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Other Mercedes-Benz Models:

Fob Compatibility:

  1. FCC ID: KR55WK49031
  2. Models: 2007-2008 Mercedes-Benz CLK550