Problems with 2008 Volkswagen R32 ENGINE AND ENGINE COOLING

I have had several issues with some corrected but the hesitation of power and shifting issues with dsg continue to persist. several times i have tried to accelerate and the car does not respond immediately, this has happened on the expressway several times. there is also some jerking in the car as it tries to go through gears. it also feels like it is going to stall before it actually gets going. finally, the car has rumble feel through the pedal and feels like it is fighting itself and when you turn the wheel to the left it starts an on and off rumble. other problems that have occurred were a loud knocking which was eventually fixed by replacing the entire engine. they first replaced the flywheel thinking that was the issue. *tr

This is the second time i am bringing this to the dealer. while driving the engine dies and cant start it again. had to get it towed to dealer in the middle of nowhere. dealer asked what was wrong i said it felt as if the battery died and the engine just died. they tried fixing it and it happened again. this time however i was able to drive it to the dealer before it died again. same problem. volkswagen dealer has it and had it over a week. my service advisor doesn't even know what the problem is and cant promise me a date when they will have it ready. i feel unsafe because of the fact the car just dies in the middle of the road. *tr