Originally Posted by JCM298
I've been to a number of locksmiths to see if a key could be made that could be used to open the doors, in case the key accidentally gets locked in the car. Nobody can duplicate the key. John
I don't know about duplicating a key, but there is one that can be used as a spare to unlock your doors in case the FOB gets locked inside. I had to have the glove box tumbler replaced. The dealer ordered one, and it came in a few weeks later and was installed.
A couples of days later, I find this flat key which is cut the same as the one on my FOB. It was laying on the floor on the passenger's side. It will only open the doors and glove box. The engine will fire up for a split second and then it dies. At least I have a spare key in case I lock myself out. It must of come with the tumbler, I never asked.
I don't know if you can order one from the dealer or not, but spare keys to get you back inside of the car are out there.
Note the three point MB star on the flat key.