My first forum, forgive any faux pas I may commit. My 2002 A4 1.8 which is just out of warranty a few thousand miles has a failed steering rack, and bad tensioner which a non dealer mechanic has told me could be the prelude to a sludge problem. I am taking up the issue with Audi, but it is a war of attrition, does anyone have suggestions on the chain of command at Audi to expedite this process? I bought this car new, never wrecked and did double the oil changes recommended. Help! Audi Girl