Cold Morning No Start
I'm having the same intermittent problems on my 2004 330xi with a brand new battery. Some mornings before I even step out of the door I know whether or not my car will start. I've found that if you just jump it with a jumper pack or another vehicles battery it'll start right up lickety split. I'm not sure what the problem is myself, but I'm starting to lean towards a defective starter. But before I endure that painful 6 hour task, I'm hoping somebody can save the day with a definite fix.