I had road side service come out to my place to jump my car when my battery died. I was like 4 miles from a benz dealer so they sent a mechanic with a new battery. I told him I did not want to jump the car because of the stories of people blowing electronics when jumping a car. He said that he has jumped 100's of SL's and it has never happened to him. He said if you don't cross the cables your fine. Anyway.... just put a new battery in an enjoy.