Ok, here is what you look for.

Under the hood, there is a connector in front of the brake reservior that has three wires in it. The large one is the one that triggers the starter. If there is a relay near there, that is your problem. Also, there could have been a relay installed under the dash panel. The wire color is purple I think.

You will have to take out the relay and splice the purple wire back together. The roadside guy should have been able to find this, it is a short path from the ignition switch to the starter.

Good luck.

The only other thing in the loop is the neutral switch on the tranny.

__________________
Benzmac:
Donnie Drummonds
ASE CERTIFIED MASTER AUTO TECHNICIAN
MERCEDES SPECIALIST 11 YRS