Hi Everyone,

I am trying to change a battery in my smartkey. Can anyone please give me some pointers? I don't even know how to begin. Is ther a step by step instruction available somewhere?

Your help is greatly appreciated.

Mitul
1998 E430

 

[list=1][*]Remove the mechanical key from your smart key[*]Inside the slot you just exposed by removing the mechanical key, you'll see a gray piece of plastic.[*]Hold your smart key with the panic button facing you and down[*]Take your mechanical key and press the gray plastic piece to the left.[*]With the gray plastic piece moved left (it's spring loaded) get your thumbnail into the seam at the top of your smartkey[*]Slide the removable section out, and viola - there is your battery![/list=1]

 

if your warranty hasnt ended yet, is a new battery covered?


B

 

Technically, I would think not as it is a wear and tear item. However, when you bring in the car for service, you can ask for a new battery and see what happens. A nice dealer may just throw it in. It's not as if a battery would break the bank.