Everything I've seen including those that are nice enough to post results of their oil analyses indicate to me that an oil change at 10,000miles for the frequent driver (change more often if car sits for long periods or is driven very short distances) is more than adequate for oil quality and also filter quality (if OE is used). I saw an earlier post saying higher end TDIs take a 5,000miles oil change interval (OCI)...and there are many reasons for that ranging from higher oil temps to larger amounts of soot produced. Its a different animal.
The 2.0TDI CR and similar smaller engines are fine with 10,000 mile OCIs. That being said, I've decided to change mine every 7,500 miles. Its a personal choice, and I don't feel that my car will really care whether I do it at 7,500 or 10,000. I would caution those who want to change it more often than 7,500 miles though. Today's oils regardless of spec have the most detergent content of any oils in history. It has been proven that those detergents can actually harm your engine over time if they are aggressively used (ie. excessive oil change). Changing the oil twice as often as recommended puts you into a situation where those detergents (which are designed to get you to that 10,000 mile point and beyond) are replenished too often. This can lead to premature wear to seals and other problems. Also, changing the oil this frequently (keep in mind that the 2.0 CR TDI uses a 507 00 spec which is definitely SYNTHETIC, which lasts twice as long as conventional anyway) is quite honestly a waste of money.
Our oil is by no means cheap. I know it takes some getting used to as far as going that long without an oil change, but there are proven reasons for it. I was a skeptic with all the rest of you, but I did my research. You have to change with the times as far as technology goes. I feel that 7,500 to 10,000 miles is a very acceptable range within to change the oil in this car. Sometimes we get a little carried away...in this case, go with whats in the book. No matter what we think of car manufacturers, they do more research and testing than you could ever do. But that's just my 2 cents on the matter.