How to Replace the Battery in a 2006 Mercedes-Benz S600 Key Fob

If your Mercedes-Benz keyless entry remote is not unlock doors well, the battery likely must to be replaced. In this post, you’ll benefit from knowing how to open Mercedes-Benz remote key fob and change a discharged battery yourself. If you choose to do it at home near S600, use this guide, but don't forget to check all you need.
What kind of battery remote key fob require
Before starting open keyless entry remote check all that you need: flat head screwdriver and 2 CR2025 batteries.- 2xCR2025 batteries
- flat head screwdriver
Simple steps to change the battery in your car's remote key fob
Inside of your keyless entry remote installed tiny button cell battery. Remove any internal key first, and then try to pry apart the keyless entry remote.
Gently try to disassemble your keyless entry remote with flat head screwdriver. Replace two CR2025 batteries with flat head screwdriver.
Replace old batteries with new one CR2025. Battery must be placed with the same polarity as was a previous. Your keyless entry remote will not work if you by mistake put battery wrong way.
Before assembling fob’s case, check that all is functioning by testing buttons on remote key fob.
The last thing to do is put your cover back on fob. Accurately try to assemble the two halves in place by hands from top to bottom. If your remote key fob case tightly 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
Still not working? Buy new one