97 e300d new key and cylinder

[dkeel22274]

Does anyone know if the key that comes with a new ignition cylinder is suppose to crank the engine? It unlocks doors and ignition, but engine will not start, its turns over and over.
My electronic key does, my flat key does. Dealer says I have to purchase a new key with transponder. Just paid $130 for new cylinder.
I thought I had trouble with cylinder, turns out my electronic key is being a little troublesome.
I bought the car used(97 e300d). I got electronic key and flat key.
I never installed the new cylinder, since I found ou the flat key works great.
Thanks