How to Open Your 1996 Mercedes-Benz C220 Key Fob & Change Battery

If your C220 remote key fob is not unlock doors correct, the cell battery most likely must to be replaced. In this article, we described how to disassembly your remote key fob and replace your Mercedes-Benz key battery step by step.
What type battery keyless entry remote require
Replacing batteries in keyless entry remote require flat head screwdriver and CR2025 batteries. 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 replace the battery in your car's keyless entry remote
A button cell battery installed inside the your key fob. Open the key if it is in the keyless entry remote.
Accurately try to pry apart your remote key fob with pry tools. Change 2 CR2025 batteries with flat head screwdriver.
Get new batteries and install it inside fob’s case. Every battery has a negative and positive side and if you put the wrong connector down, the charge cannot go into your circuit board and make it work. Check polarity on battery, by "+" mark.
After the new batteries installed, check keyless entry remote functionality by pressing buttons. If all functions works, assemble your keyless entry fob's case in reverse order.
At this point squeeze fob’s back cover together. Line your body pieces together and assemble 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 1996 Mercedes-Benz C220 Video
How To Replace A 1996-2005 Mercedes-Benz C230 Key Fob Battery FCCID: KR 55
Still not working? Buy new one