I just changed fluid on my daughters 2008 Jetta 2.5. I drained only 2.5 quarts. I removed drain plug the the ATF level plug and only 2.5 quarts came out. I the put ATF level tube in filled it ran it through the gears with car level and correct temp and could only put 2.5 quarts in. It seems a like a small amount to drain. I used the below diy to help me out. Should I have any concerns.
http://www.passatworld.com/forums/91-b6-...filter-diy.html
http://www.passatworld.com/forums/91-b6-...filter-diy.html