http://www.dieselgiant.com/repairignitionlock.htm

Good pictoral for a broken ignition switch. If your current switch works, you don't have to grind the pin down, just insert the key, turn to the second notch, and remove the tumbler with a wire.

__________________
1992 300D 2.5T 249k - Parked with a bad transmission
1981 300SD 142k - Daily driver