Spotty, I feel for you. I just went thru an issue with my 93 600sel and I hope it is fixed (just got the car back). I'm doing the "test drive" thing now. I managed to keep my cool, realizing that it is a 10 year old car, but I'm not sure that I could handle having a new car and going thru what you are. I just might lose it. I sincerely hope that they get this sorted out for you in a timely manner. It is disturbing to hear that the 2nd car has the same problems....I had been lusting after an e500 that is at the dealership...I think I'll wait. Please keep us posted.
Best of luck.
A mercedes is an inanimate object and therefore must respond to logic and reason.