How to Open Your 2004 Mercedes-Benz CLK500 Key Fob and Change Battery

If your car key fob isn't unlock doors properly, the battery surely must to be replaced. In this post, we walks you through how to disassembly your remote key fob and replace your Mercedes-Benz key battery step by step.
What size battery does 2004 Mercedes-Benz CLK500 remote key fob required
Prior to open keyless entry remote make sure that you have all recommended tools and materials: 2 CR2025 batteries and flat head screwdriver.- flat head screwdriver
- 2xCR2025 batteries
Simple steps to change the battery in your car's remote key fob
Inside of your key fob installed tiny coin battery. Remove any internal key before you try to pry apart the remote key fob.
Delicately try to pry apart your remote key fob with hands or flat head screwdriver. Remove 2xCR2025 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 will not work if you place battery wrong way.
Before assembling keyless entry fob's case, verify that all functions works by testing buttons on circuit board.
At this point squeeze fob’s back cover together. Line your case two halves together and put it together by hands from top to bottom. If your fob body tightly closed, we done. If not, repeat the last step.
Key Fob Battery Replacement 2004 Mercedes-Benz CLK500 Video
SOLVED - Mercedes Benz Keyfob Battery Replacement | Smart Key Fob Dead Batteries
Still not working? Buy new one