How to Open Your 1997 Mercedes-Benz SL320 Key Fob and Change Battery
If your SL320 key fob is not open doors properly, the battery most likely needs to be changed. It's not difficult to replace the battery in your keyless entry remote, and itโs easier than you think. All tools, that you need is outlined in this article.
What is the battery remote key fob require
Changing batteries in remote key fob require flat head screwdriver and CR2025 batteries. Prepare these materials and tools before opening and make sure to match the type of your keyless entry fob's batteries.- 2xCR2025 batteries
- flat head screwdriver
Simple steps to replace the battery in your SL320's key fob
Inside of your key fob installed small coin cell battery. Open the key if it is in the remote key fob.
Delicately try to pry apart your fob with hands or flat head screwdriver. Replace 2xCR2025 batteries with flat head screwdriver.
Replace old batteries with fresh 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 fobโs case, verify that all working fine by pressing buttons on key fob.
At this point squeeze keyless entry fob's back cover together. Line your body pieces together and assemble it together by hands from top to bottom. Inspect your key fob shell for gaps. If it is not firmly closed try to repeat last step.
Video of keyless entry remote opening
How To Replace A 1995 - 1999 Mercedes Benz Flip Open Switch Blade Style Key Fob Battery FCC ID KR 55
Still not working? Buy new one