Finally got the vehicle back today. Here is the fix (at least I'm hoping it is). Engine wiring harness (12-51-7-570-407) replaced. Puma case submitted. They also found a faulty gws. This was also replaced. I'm hoping this does it. If not, I'm going to have to look at the trade in program.

Has anyone used the BMW trade in program because they cannot fix a problem?

I've just updated the post.
In my case it was a throttle body. I heard of two more cases like this: one was a throttle body the other was a wiring.

Good Luck.

Thanks for the update. No more error messages as well. I think we are good on this front. Vehicle going in tomorrow for hesitation at the line. The vehicle will surge into 2nd gear. Usually occurs with heavy load (A/C on). The car seems sluggish in general. I've read several posts on this and I hope it does it when I take it in tomorrow. Maybe adaptive drive reset?

Keep me posted, same thing is happening to my e70 intermittently.

I Just picked up vehicle. SA/shop forearm did a great job going the extra mile. They contacted PUMA regarding ZF transmission and requested assistance. They recommended a reprogram DME idle conversion...sounds good. The cars seems more responsive now. I'll keep you posted..

Great, thanks for the update. :thumbup:

Update: The vehicle is driving great! The shifting characteristics are now more reminiscent when I first picked up vehicle. One thing I noticed was the mpg seemed to lower. I'll test on the highway this week. Not sure if its related to the DME reprog. Any thoughts on the mpg? Thx.

4.8 on highway should be hitting 18miles/gallon, but if you are pushing it and hitting 100miles/hr (I don't know anyone who does that), then I heard the mileage may be about 15.x

Average in the city should be about mid 13miles/gallon. Again, unless you drive in Drive Sport then yo can get those numbers lower.

All in all you should be getting close to 350 - 400miles/tank in on highway going an average 70 miles/hr. 250-300miles/tank driving around town with some moderate highway and traffic.

Thanks! I'll keep an eye on it. I drive fairly conservatively, but we all know why we buy BMW's.

I am having that issue today. who did you take your x to for repair?