I have read virtually all of the post on this forum concerning anyone being able to reprogram one of the Smartkeys. I have never read any post here where someone claims success. I have also searched thouroughly with google in the past and have never found anyone who could do it either. Kind of a good news/bad news thing. The good news is your car is more secure than most, I'm sure you can already guess the bad news...

Paul
1998 E300 (very good car)