1995 Mercedes-Benz S420 Key Fob Battery Replacement Instructions
Keyless entry remote grant easy access to your auto. If the remote key fob battery is weak or dead you’ll not to be able open doors remotely. Yes, it is possible to replace the battery in your remote key fob with our guide. All tools, that you need is explained in this article.
What is the battery key fob use
Before beginning open keyless entry remote check all that you need: two CR2025 batteries and flat head screwdriver.- 2xCR2025 batteries
- flat head screwdriver
Step by step instruction
Inside of your keyless entry remote installed coin cell battery. Open key before you try to pry apart the keyless entry remote.
Carefully try to pry apart your key with pry tools. Replace 2 CR2025 batteries with flat head screwdriver.
Replace old batteries with fresh one CR2025. Battery must be installed with the same polarity as was an old. Your key fob will not work if you by mistake put battery wrong way.
When the new batteries installed, verify key fob by pressing buttons. If all functions works, assemble your keyless entry fob's shell in reverse order.
At this point squeeze fob’s back cover together. Line your shell pieces together and put it together by hands from top to bottom. Inspect your key body for gaps. If it is not firmly closed try to repeat last step.
How to change the battery video guide
Mercedes 94 S-Class Key Battery
Still not working? Buy new one