Mooch2, pardon me but I wasn't aware you could get a MB Ignition Key from anywhere except MB and it takes weeks and weeks to get it. If I'm wrong, shame on me. My w124030 Benz has a key system that protects itself. With mine I have the key with the red dot that operates all locks and arms the burglar alarm and the plain key(I call it the dumby key) that opens the doors and operates the ignition switch, provided the door was locked by the dumby key. If locked by red dot and opened with dumby the alarm sounds. So much for owner manual 101. Happy Trails Beep Beep from Houston.
I use the Red Dot