How to Open Your 2009 Mercedes-Benz C300 Key Fob & Change Battery
If your auto keyless entry remote is no longer open doors perfectly, the cell battery surely must to be changed. In this post, we described how to disassembly your keyless entry remote and change your Mercedes-Benz key battery.
What kind of battery remote key fob useBefore going to disassembly remote key fob check all that you need: flat head screwdriver and CR2025 batteries.
- 2xCR2025 batteries
- flat head screwdriver
Simple steps to change the battery in your C300's keyless entry remote
Inside of your keyless entry remote installed button cell battery. Move the key out of the way if it is in the remote key fob.
Accurately try to open your keyless entry remote with pry tools. Replace CR2025 batteries with flat head screwdriver.
Now it's time to install new batteries inside fob’s case. Battery must be installed with the same polarity as was an old. Your keyless entry remote will not work if you by mistake place battery wrong way.
Before assembling keyless entry fob's case, make sure that all is functioning by pressing buttons on remote key fob.
The last thing to do is put your cover back on fob. Delicately try to put the pieces together by hands from top to bottom. Check your remote key fob shell for gaps. If it is not tightly closed try to repeat last step.
Video of remote key fob opening
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