Installed an accusump oil pressure accumulator on my 2007 S4 with 45k miles. The car used to have slight chain rattle every once and again. I have been running the accumulator for the past 3 weeks and I have not experienced even a HINT of rattle. According to my VAG-COM I am getting nearly normal oil pressure just prior to start. Can't be happier! I will post pics as soon as I get home from training.

-TK