How to Replace the Battery in a 2012 Mercedes-Benz E200 Key Fob
If your Mercedes-Benz keyless entry remote isn't open doors well, the cell battery probably needs to be replaced. Below, we described how to disassembly your car keyless entry remote and change your Mercedes-Benz key battery step by step.
What kind of battery key fob requireBefore beginning disassembly key fob be sure that you have all recommended tools and materials: flat head screwdriver and 2xCR2025 batteries.
- flat head screwdriver
- 2xCR2025 batteries
Simple steps to change the battery in your E200's keyless entry remote
A tiny button cell battery installed inside the your key fob. Remove any internal key before you try to pry apart the key fob.
Delicately try to disassemble your keyless entry remote with pry tools. Replace CR2025 batteries with flat head screwdriver.
Get new batteries and install it in fob’s body. Be sure to connect the battery the right way around in a circuit. Your key fob will not work if you place battery wrong way.
When the new batteries installed, verify keyless entry remote by pressing buttons. If all functions works, assemble your fob’s shell 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. If your key case firmly closed, we done. If not, repeat the last step.
Video of keyless entry remote disassembly
Mercedes Benz Key Fob Battery Change - How To DIY Learning Tutorials