2000 Mercedes-Benz S600 Key Fob Battery Replacement Guide

Keyless entry remote grant access to your Mercedes-Benz. If the key battery is weak or dead you will not to be able unlock trunk or doors remotely. Yes, it is possible to replace the battery in your remote key fob with our guide. All tools, that you need is described below.
What kind of battery remote key fob require
Before going to open key fob check all that you need: flat head screwdriver and 2xCR2025 batteries.- flat head screwdriver
- 2xCR2025 batteries
Simple steps to change the battery in your S600's key fob
Inside of your remote key fob installed tiny button battery. Move the key out of the way if it is in the keyless entry remote.
Delicately try to pry apart your remote key fob with flat head screwdriver. Remove CR2025 batteries with flat head screwdriver.
Now it's time to install new batteries in fob’s shell. 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 position on battery, by "+" mark.
Before assembling fob’s case, check that all functions works by pressing buttons on circuit board.
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. If your remote key fob shell firmly closed, we done. If not, repeat the last step.
Video of keyless entry remote opening
SOLVED - Mercedes Benz Keyfob Battery Replacement | Smart Key Fob Dead Batteries
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