Hi, I have a 1987 300e with about 150k on it and this morning the car wouldnt start. It has been working fine for months but for some reason it wouldnt start today. I did have to replace the OVP relay once though. I jump started it with another car and the engine would turn off as soon as one of the cables were removed. Does anyone know what the problem is or what I should do? your help would be greatly appreciated. thanks