It is a big deal if you have to change it as much as the article says you will. why should someone that paid for a luxury vehicle be made to do this if the company intentionally cheated because it wouldnt have been able to sell those vehicles if they did it in the first place because consumers wouldnt buy them, as stated in the article. but now that they were caught in illegal activities, we should expect those same customers to have to ad that much. I would do it myself so besides my cost and time it would just be a pain. But some people take them to the dealership everytime for fill ups and that is a lot of wasted time if you have to refill every 1200 miles. I drive that in 2 weeks.
Q7 has AdBlue filler available externally, no big deal