Third ROC

upon further investigation (basically rolling down the windows and driving around the parking garage with my head out the window), it seems that this "click/clunk" sound is coming from the right-front area under the car. My hypotheses are: 1) suspension/drivetrain component of the passenger-front wheel 2) passenger-side turbo/wastegate sound?

The only reason I mention the possibility of the turbo/wastegate is that is is kind of a "pop/click" sound that occurs only when I accelerate mildly or am lifting off the throttle (most noticeable in second gear). So I am in boost, but no more than 5 psi according to my gauge. This is on a stock ecu. Of course, it could be that the gobs of torque the S4 puts out is causing an injured suspension/drivetrain part to hit something as the inertia of instantaneous forward momentum unsettles it. I don't think it is suspension however as there is no noise when going over bumpy roads/speedbumps.

I'll take a look at the suspension components tonight after work (I need to rotate my tires anyway).

Does anyone have any experince or knowledge of popping/clicking wastegates or wastegates going bad? (sounds like a jerry springer show "Wastegates gone bad") Is there an easy way to get a look at them with the use of ramps?

Any ideas about drivetrain components?

The search for an answer continues...

//scottInSoCal

good luck with your hunt