Update: three trips in 3 months to the dealer, for a total of 2 weeks in the shop. All issues surrounding the DEF filter, fluid, turbo etc etc etc. I am done with this car.Yes I've had the same issue after the update, and I came aboard just to share my dismay. I had issues before but at least the engine was more responsive. I also had the DEF issue. They drained and refilled, probably replaced the filter, but didn't tell me. I honestly believe they are keeping from me how much work they have to do. The car has been in the shop for a total of 4 weeks over the course of 5 years. I now get about 17MPG, with that sluggishness and hesitation. On top of that I also get a little gasp every once in a while, usually when the engines cold for about 7-10 minutes. Once it's warm it doesn't make the noise.