How to Replace the Battery in a 2002 Mercedes-Benz S430 Key Fob
Key fob grant access to your Mercedes-Benz. If the key battery is discharged you’ll not to be able unlock doors remotely. In this article, we outlined how to open your car remote key fob and change your Mercedes-Benz key battery step by step.
What type battery does 2002 Mercedes-Benz S430 keyless entry remote required
Prior to disassembly keyless entry remote make sure that you have all required tools and materials: flat head screwdriver and CR2025 batteries.- flat head screwdriver
- 2xCR2025 batteries
Simple steps to change the battery in your car's remote key fob
Inside of your remote key fob installed tiny button cell battery. Move the key out of the way if it is in the remote key fob.
Gently try to pry apart your key fob with pry tools. Change two CR2025 batteries with flat head screwdriver.
Replace old batteries with fresh one CR2025. Battery must be installed with the same position as was an old. Your keyless entry remote will not work if you mistakenly place battery wrong way.
When the new batteries installed, verify key fob by pressing buttons. If everything working properly, assemble your fob’s body in reverse order.
The last thing to do is put your cover back on fob. Accurately try to assemble the pieces in place by hands from top to bottom. Check your keyless entry remote case for gaps. If it is not firmly closed try to repeat last step.
How to change the battery video instruction
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Still not working? Buy new one