We've all got those questions where the answers seem so obvious, but you just can't be sure that you're actually right. So in an effort to keep these questions from creating pages full of stupid question threads in the forum, just ask them in here. If you know the answer, quote the question in your response.
In addition, if you need to search this thread for something asked within it without searching the entire forum, you can do so at the top of this post:
And to start, what exactly does the regen cycle on the new CR TDI engines do? I've always stuck to working on the old ALH / BEQ diesels, so the newer ones are more of a mystery to me than the older ones.