w220 creda door locks b4 u press start and it goes run then end after about 15 secs thought it was pcb at 1st but tried it on another auto and its ok tested all other parts they look ok?
dop
sure i have had this before but cant remember what sorted it
as for going to end if the motor tacho is dodgy that will make the program end but it would not account for the starting on its own