Hi All,

My 2003 4.4 X5 Auto did something strange on the weekend. It's summer now in Sydney and took the X5 for a drive on the freeway, after about an hour I noticed the engine reved up and transmission. Put it in sports mode and noticed it would not upshift in to 4th or 5th gear always returned back to 3rdso had to limp to next stop in 3rd. The next day all ok, but again after an hour on the freeway back home the same thing. I assume it may have something to do with the transmission overheating - anyone hear or have have similar experience with their X5 transmission?