Car malfunction light comes on spontaneously and runs rough and losses power and rpm can go to 4 at 35 mph and usually happens when car is idling parked for a little while. Them I cut it off and let it sit it gs back to normal. I also had prior problems with it smoking from tailpipe and its documented at dealership in Columbia SC and they said it wasnt smoking enough to replace the turbos at the time but I got a notification from manufacturer about turbo malfunction.