AMGJAY

Is there a wallet key for our cars that allows us to start the car without having our actual keys on us? I read that some of the MB's had this feature. Not sure if MB did away with that since I haven't heard anything about it. Just thought that was a cool convenient thing go have if available.

MJP

My FOB has a little key that pops out] but have no idea what it's for.

BrabusNYC

I don't think they make the wallet key anymore...

jmacdonald03

No wallet key available. The little blade that pops in and out of your key fob is to unlock your drivers door if your batteries in your key are dead.That way you can always get into your vehicle. Drivers door only though. Also if your changing your key batteries, you use that blade to open your key FOB