When you buy a brand new Mercedes, how many keys do you get? 4? 2 Masters or whatever you call them (the ones with the swithblade style retractable key, 1 valet, and 1 that opens all locks but doesn't start the car? How come when most people buy a used MB, they only get 1 main key?<br> <br> I was told to get new keys I have to take the registration to a MB deal and order them. $140 for the main. Is that about the average price? How much do the other key cost? Can a dealer order the keys for me and get a better price?