You know you go into a showroom and a sales guy approaches you real coy like....can I help you?? That's what happens a lot,but when I got my new (demo 5.8Ks on the clock,13 months old)I new what I wanted and who I had to speak to.The modern cars these days are getting pretty tech heavy.I got a quick run thru and see ya later.Try reading these encyclopedias on these Passatts.....Wow and more wow.I wish someone would bring a DVD out on them rather that the odd view on youtube.Ill perservere,but I want to know 1 thing if anyone can help.....What is Regen?? I get home somedays and my fans are screaming their heads off for 10 mins or so after car turned off.Is that Regen? or Turbo cool down on my diesel ride?? Writing is not my forte.... Thanks