general problems of the 2012 Volkswagen Jetta

48 hrs after driving off dealer lot, "diesel ' odor thru fan and idle at stop signs/lights, dealer notified told it would go away after broke in, continued w/o improvement, took to dealer, stated checked everything no problem, bring back may be animal or something blocking exahust (within days). Returned told seal was broke just under intake manifold, pics sent to Volkswagen,, called to check status only to be told "turbo cracked. " 2 weeks later car picked up, stated all recalls performed prior to driving off lot Nov 26,2011, still havent been provided with documentation. Concerned for safety, as well as nausea associated with odor in cabin.

2012 Jetta tdi manual, the first occurrence happened after traveling on a downhill grade when I came to a complete stop at the stoplight the car started to shutter and acted like it was going to stall. This exact incident happened several times a month for no rhyme or reason. The car has now started to do the same thing more frequently and will now stall out. It used to be on cold starts and would happen within the first 10 miles of driving. It now does it anytime you are driving. I tried to start the car after work three days ago and when I started the car it shuttered and stalled, I attempted to start the car three more times before it finally stayed started. While driving home the car acted up again at the stop light shuttering and acting like it was going to stall out. The car had to be towed to the dealership. The dealership can't figure out the problem. I am scared that I will be out in the intersection or worse be on the expressway and the car will stall out and I will end up getting hit.

Upon entering an on-ramp and also accelerating around a turn, experienced no response to depression of gas pedal. Basically car had serious lag before taking off. Worried about safety issue when trying to get out of someones way. Very unpredictable in occurance and do not want to have a wreck. Also experienced "stuttering" around 30 mph as if vehicle did not know which gear to get into. This happens frequently and creates a physical shutter of vehicle felt by driver and passengers.