How to Open Your 2009 Mercedes-Benz SLK280 Key Fob & Change Battery
If your Mercedes-Benz key fob is not working well, the battery most likely needs to be replaced. It's not complicated to replace the battery in your keyless entry remote by yourself. All you need is outlined below.
What size battery does 2009 Mercedes-Benz SLK280 key fob takeReplacing batteries in keyless entry remote require 2xCR2025 batteries and flat head screwdriver. Prepare these materials and tools before opening and make sure to match the size of your keyless entry fob's batteries.
- flat head screwdriver
- 2xCR2025 batteries
Simple steps to replace the battery in your SLK280's keyless entry remote
Inside of your remote key fob installed tiny button cell battery. Move the key out of the way if it is in the keyless entry remote.
Carefully try to open your key fob with flat head screwdriver. Replace 2xCR2025 batteries with flat head screwdriver.
Change old batteries with fresh one CR2025. Battery must be placed with the same position as was a previous. Your remote key fob will not work if you by mistake place battery wrong way.
Before assembling keyless entry fob's case, make sure that everything is functioning by testing buttons on circuit board.
The last thing to do is put your cover back on fob. Delicately try to assemble the two halves together by hands from top to bottom. Inspect your keyless entry remote shell for gaps. If it is not firmly closed try to repeat last step.
How to replace the battery video instruction
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