This was the exact same problem that the 2007+ X3 AT suffered. It has never been fixed, and BMW still continues to "sweep" it under the carpet. Go look at the thousands of posts on the X3 page. I finally got a TA and swapped for an MT.
Originally Posted by gleek
I have a new 2011 X6 with the V8 and the new 8 speed transmission. Occasionally, under heavy acceleration, the car feels like it cannot find the next gear (not sure, but probably between 2-3 or 3-4 gear) at aroudn 4k rpm. This is pretty disconcerting as it could cause a problem merging or avoiding traffic and I feel it is a safety issue. The car violently lurches as it feels like it is trying to find the next gear.
I took this to my dealer and they could not find any faults and BMW doesn't feel there is a problem. Have any of you found this problem?
They denied it as well and used every excuse in the book to rebuke it.
I was almost killed entering a roundabout when it hesitated with a very large Landscaping wood chipper truck heading my way.
It also is more prevalent during cold starts or weather. If this is a new BMW start documenting this right away and bring it in immediately for service. This way if it reoccurs for than 4 times you can lemon law it and get a TA.
Good Luck. I hope I am wrong.
2013 S4 Loaded (and NO RFT's) Awesome is an understatement
2008 MT X3
RIP you were a faithful sidekick and will be missed.
2007 AT X3 RIPOS
2000 Jeep Cherokee
1997 Twin Turbo RX-7
1984 GTI Wolfsburg Edition Neuspeed and more
Last edited by Evlengr; 02-02-2011 at 04:14 AM.