Replacing Key's battery
Thread Starter
MBWorld Fanatic!
Joined: Dec 2008
Posts: 2,169
Likes: 75
From: San Diego
Hyperion's Candy-Coated 4 x 4
Replacing Key's battery
Never had these keys before (for 2010 C63), do I have to go to a MB Service station or can I just go to Radio Shack or something and buy a new battery?
MBWorld Fanatic!
Joined: Jun 2006
Posts: 2,359
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From: California
06 C55, 09 E350
I don't see why you would need batteries already since they usually last 2-5 years depending on the usage. I change batteries out probably 10x a day for customers it's less than $20 so no big deal. Radio shack won't change them for you 
MBWorld Fanatic!
Joined: Apr 2009
Posts: 6,020
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From: Alexandria, VA
07 E63 AMG, 10 C63 AMG, 07 E63 Designo, 07 E350, 09 C300, 07 C230
You would go to Radio Shack or any other convenience store to purchase these batteries. They are CR2025, I had to replace mine the other day for my 07 E63. Your car manual will show you how to open it, and it takes just one battery. But if you can't open it, take it to your local MB dealer, they can open the key up for you. But you shouldn't need to change your battery this soon. I use Keyless Go all the time, but it's too soon to be changing batteries already. But I have had batteries last for 2 years before. But I maybe wrong, it all depends on how much your using them.
Thread Starter
MBWorld Fanatic!
Joined: Dec 2008
Posts: 2,169
Likes: 75
From: San Diego
Hyperion's Candy-Coated 4 x 4
You would go to Radio Shack or any other convenience store to purchase these batteries. They are CR2025, I had to replace mine the other day for my 07 E63. Your car manual will show you how to open it, and it takes just one battery. But if you can't open it, take it to your local MB dealer, they can open the key up for you. But you shouldn't need to change your battery this soon. I use Keyless Go all the time, but it's too soon to be changing batteries already. But I have had batteries last for 2 years before. But I maybe wrong, it all depends on how much your using them.
Junior Member
Joined: Feb 2010
Posts: 74
Likes: 0
2014 E550 Cab
My sales guy said if you place your keys close enough to the car that it detects it it will draw the batteries down. He said the batteries in the keys hanging on the wall in the dealership needs to replaced every few months because of this.
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Banned
Joined: Nov 2009
Posts: 282
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From: Orange County, CA
2010 Mercedes Benz C63 AMG, 2011 BMW X5///M
2-5 years?
mine lasted 8 months since i got it. . . . i just got them replaced yesterday for free and my SA hooked me up with 2 more batteries
