just getting the x back today from bmw dealer they changed out throttle body wiriring harness , a $21 part , with labor my bill was $300.

If you are in Atlanta market, go to Solomotorsports. Ask for Boris or PJ, and David most likely will be your tech.

lucky me.... only a bad battery. AAA jump, then new battery at my indy:thumbup:
reset all codes and I'm good to go:D

Just had the same thing happen to my '08 X5 4.8. They told me there is an updated harness for the throttle body.

Sorry to dredge this back up, but the same thing is happening in my 07. They thought it was the intelligent battery cable, but $300 later it did it to me again. Does anyone know if the throttle body bulletin covers the 2007?

http://www.xoutpost.com/792497-post12.html

Just so you know, this is a service bulletin, not a recall. It applies to all E70s up until roughly the time they first published it (one assumes they fixed the mfg process)

(I just googled the SIB number to find this, BTW)

I don't remember the bulletin mentioning anything about 2007 models but it doesn't hurt to try the fix. The part is fairly cheap and it only takes about 30 minutes to do if you want to DIY it. I recommend getting some good quality butt splices to connect the new harness (unless you plan to solder the harness) because the ones BMW provides are complete junk.

Hmm, well I'm taking it back to the shop today and I'll have them do it, since I'm $300 in the hole to them already, so I'll argue that they do a peek-a-boo gratis.

So (I initially posted this), I am back to this same issue again.
Now on another throttle body and maybe spinning my wheels here.

Can you tell me what end of the harness did you have replaced?

I don't know if it helps, but I saw similar stuff on my dashboard when I worked on the oil cooler gasket. Alternator was already removed and battery was running low.

It may be worth a try to retest the battery under load, and if it's good, to re-register the battery after charging it to 100%, followed by clearing out all the codes.