How to Open Your 2003 Mercedes-Benz S500 Key Fob & Change Battery
If your auto keyless entry remote is not open doors well, the battery surely must to be changed. In this post, we are going to tell you how to open your remote key fob and change a weak or dead battery DIY. If you choose to do it at home near S500, use this guide, but first make sure you have everything you need.
What type battery key fob useDon't forget before disassembly key fob be sure that you have all recommended tools and materials: flat head screwdriver and two CR2025 batteries.
- flat head screwdriver
- 2xCR2025 batteries
Simple steps to replace the battery in your car's key fob
A small button cell battery installed in the your remote key fob. Remove any internal key first, and then try to pry apart the remote key fob.
Delicately try to pry apart your keyless entry remote with pry tools. Replace 2xCR2025 batteries with flat head screwdriver.
Replace old batteries with new one CR2025. Every battery has a negative and positive side and if you put the wrong connector down, the current cannot go into your circuit board and make it work. Check polarity on battery, by "+" mark.
Before assembling fob’s case, check that all is functioning by pressing buttons on circuit board.
The last thing to do is put your cover back on fob. Carefully try to put the pieces together by hands from top to bottom. If your remote key fob case firmly closed, we done. If not, repeat the last step.
Key Fob Battery Replacement 2003 Mercedes-Benz S500 Video
SOLVED - Mercedes Benz Keyfob Battery Replacement | Smart Key Fob Dead Batteries
Still not working? Buy new one