My remote key had been acting up over the last couple of weeks. By acting up I mean not unlocking when I press unlock. Last night I was trying to unlock my car after dinner and it wouldn't work. Luckily the frunk button worked, which unlocked the car. What happens in a situation where the key fully dies or breaks? There are no key holes to manually unlock the doors. Am I missing something?

 

1) I would assume you have two keys? Do both do the same thing?
2) THere is a mechanical key in your keyfob that comes out. You can insert it in the keyhole that is available on the drivers door when you lift the handle..

3) Key battery?

 

It is under warranty....for now.

 

Before you contact your dealer try it after switching out the battery.

 

Lift up the drivers side door handle.
There you'll see the keyhole into which your key goes (The key is located inside your fob).
Slide the little tab on your fob to release the key.

Instructions are also in your user manual.

 

Oh wow, I'm an idiot. I didn't realize there was a key hole once you lift the door handle. Thanks guys!

I did try switching batteries with my spare and figured out the unlock button is broken. I didn't know that keys could be warrantied??

 

had a MBZ key where the unlock part of the membrane stopped working..key was changed under warranty

 

Well the should be under warranty as they cost a fortune

 

You mush have had a crappy sales guy.. Probably one of the more important things for them to tell you about when you take delivery...

 

Good to know. I'll talk to my dealer about swapping the key.