Originally Posted by msabo3

Ok I could really use some help. My son's crossfire was having starting issues. It runs great but if you turn it off & run into a store or something for a couple of minutes it won't start back. If you let it sit for a while it starts & runs fine. We ordered a new relay module from a MB dealer & put it in today but now the problem is worse than it was to begin with. We didn't unhook the battery before we replaced it..does anyone know if this will cause issues??? This is my teenagers car & he is about to have a nervous breakdown worrying about getting stuck somewhere.