I'm sorry to post a new thread about this, as there are already numerous cooling threads, but my issue seems unique. I rebuilt the front end of my '99 328i last fall after a front end impact, and the radiator was the only mechanical damage, the rest was cosmetic. I installed a whole new cooling system; I figured I would replace the rest while I was at it. Anyways, the plastic connector for the electric fan was smashed, but the wires and pins were fine, so I ordered a new plastic connection, placed the pins in the right spot, and plugged it in. But the fan won't turn on now. I've been driving as is, and I'm fine unless I sit idle for about 5-10 minutes, then it runs hot. Any ideas? I'm going to check the power to the fan and see if that's it, but are there any other reasons that I should look into?