hey guys, just a quick couple of question's. since i've had the audi i have had the power steering rack replaced. ever since then i've noticed when driving, say along the motorway when i let go the accelerator without pressing the brake pedal, i get a sort of shuddering/knocking sound which appears to come from the middle to front of the car. i also get a very light shudder through the steering wheel but this isn't all the time. any idea's? also does anybody feel that the their clutch pedal has a high biting point. i was told this is a self adjusting clutch. is this true? cheers, robert.