I have aquired a 1990 300e 4matic in great shape except the ignition tumbler has failed . I have the dash off, the tranny cable out and the allen bolt off . The tumbler is trashed and i can not get it into position one. so Im trying to remove the whole lock assembly . I read a post that said to drill out a pin the normaly retracts when your in position one (i think i can see a detaining pin of some sort throul a hole in the lock casting where it slips on to the steering column ). -- 25 years of wrenching - this is a new one to me - has anyone done this job - ??? suggestions - ??