[radiofrequency]

Driving home yesterday (Friday) on a long (2 mile) uphill stretch of a 5 lane highway in very heavy traffic, in the left hand lane in a stream of traffic doing 75 mph and suddenly an "Engine Malfunction, Reduced Power" message pops up on iDrive. The vehicle loses power abruptly, and cannot maintain speed. So, in heavy traffic, I begin an attempt to get to the shoulder all the way over on the right side and 5 lanes over on the highway, while going uphill in a vehicle, which is steadily losing power at a prodigious rate. I consider myself a competent driver, however, I have never experienced something a terrifying as this, and managed to avoid (narrowly, I might add) being run over by an eighteen wheeler tractor trailer. So the iDrive comes up with a ridiculous message telling me, if safe, to take the vehicle to the nearest BMW Dealer. I intend to leave the vehicle parked for the weekend and contact the dealer first thing on Monday morning. My 15 year old son in the front passenger seat was wide eyed and white knuckled hanging onto the inside door handle with both hands, he was convinced that we were going to be killed. Has anyone on these boards experienced such an event with an X5 35d? Mine is a 2010 with 37 000 miles with all scheduled maintenance completed by the local BMW dealer.