Thank you for the information. I have finally been able to take the Jetta on a couple of 1200 mile trips and the regens have been corrected. During the trip, they were around 280 miles or more. So far the longer drives helped it out quite a bit.Pre-fix on my '11, they were happening once, sometimes twice a tank. About 400-500 miles. Post-fix with this '13, they're averaging 190-260 since I got the new DPF. I think mine might've been doomed by the original owner. 4 years and 25,000 miles. Just wasn't driven enough to burn it out and all the regens were probably cut short.
Your mileage is about right to fairly good if you have a DSG and driving city-ish. My worst tank was 39.5ish and best around 44. That's 70% rural roads, cautious driving, and a lot of coasting in neutral. I could easily see hitting mid-30s in a small city.
Cold weather will affect MPG, too. I see about a consistent 2-3MPG drop during these mid-30s cold spells here in FL.